1078923465 has 12 divisors (see below), whose sum is σ = 1870134084. Its totient is φ = 575425824.

The previous prime is 1078923457. The next prime is 1078923497. The reversal of 1078923465 is 5643298701.

1078923465 is a `hidden beast` number, since 107 + 89 + 2 + 3 + 465 = 666.

1078923465 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 199148544 + 879774921 = 14112^2 + 29661^2 .

It is not a de Polignac number, because 1078923465 - 2³ = 1078923457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 23976077 = 1078923465 / (1 + 0 + 7 + 8 + 9 + 2 + 3 + 4 + 6 + 5).

1078923465 is strictly pandigital in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1078923465.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11987994 + ... + 11988083.

It is an arithmetic number, because the mean of its divisors is an integer number (155844507).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1078923465 = 2157846930, but 3⋅1078923465 = 3236770395 is not.

Almost surely, 2^1078923465 is an apocalyptic number.

1078923465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1078923465 is a deficient number, since it is larger than the sum of its proper divisors (791210619).

1078923465 is a wasteful number, since it uses less digits than its factorization.

1078923465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23976088 (or 23976085 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1078923465 is about 32846.9704082431. The cubic root of 1078923465 is about 1025.6445567204.

The spelling of 1078923465 in words is "one billion, seventy-eight million, nine hundred twenty-three thousand, four hundred sixty-five".