1097928078 has 16 divisors (see below), whose sum is σ = 2364768336. Its totient is φ = 337824000.

The previous prime is 1097928071. The next prime is 1097928089. The reversal of 1097928078 is 8708297901.

It is a self number, because there is not a number n which added to its sum of digits gives 1097928078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097928071) 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 7 ways as a sum of consecutive naturals, for example, 7037923 + ... + 7038078.

It is an arithmetic number, because the mean of its divisors is an integer number (147798021).

Almost surely, 2^1097928078 is an apocalyptic number.

1097928078 is an abundant number, since it is smaller than the sum of its proper divisors (1266840258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1097928078 is a wasteful number, since it uses less digits than its factorization.

1097928078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14076019.

The product of its (nonzero) digits is 508032, while the sum is 51.

The square root of 1097928078 is about 33134.9977818016. The cubic root of 1097928078 is about 1031.6315857147.

The spelling of 1097928078 in words is "one billion, ninety-seven million, nine hundred twenty-eight thousand, seventy-eight".