1078423723 has 4 divisors (see below), whose sum is σ = 1161379408. Its totient is φ = 995468040.

The previous prime is 1078423721. The next prime is 1078423727. The reversal of 1078423723 is 3273248701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3273248701 = 16319 ⋅200579.

It is a cyclic number.

It is not a de Polignac number, because 1078423723 - 2¹ = 1078423721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1078423721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41477823 + ... + 41477848.

It is an arithmetic number, because the mean of its divisors is an integer number (290344852).

Almost surely, 2^1078423723 is an apocalyptic number.

1078423723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1078423723 is a deficient number, since it is larger than the sum of its proper divisors (82955685).

1078423723 is an equidigital number, since it uses as much as digits as its factorization.

1078423723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82955684.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 1078423723 is about 32839.3624024584. The cubic root of 1078423723 is about 1025.4861776090.

The spelling of 1078423723 in words is "one billion, seventy-eight million, four hundred twenty-three thousand, seven hundred twenty-three".