104565978 has 40 divisors (see below), whose sum is σ = 255610080. Its totient is φ = 31686120.

The previous prime is 104565977. The next prime is 104565983. The reversal of 104565978 is 879565401.

104565978 is a `hidden beast` number, since 1 + 0 + 4 + 56 + 597 + 8 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (104565971) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27558 + ... + 31121.

It is an arithmetic number, because the mean of its divisors is an integer number (6390252).

Almost surely, 2^104565978 is an apocalyptic number.

104565978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

104565978 is an abundant number, since it is smaller than the sum of its proper divisors (151044102).

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

104565978 is a wasteful number, since it uses less digits than its factorization.

104565978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58704 (or 58695 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 104565978 is about 10225.7507303865. The cubic root of 104565978 is about 471.1184739902.

The spelling of 104565978 in words is "one hundred four million, five hundred sixty-five thousand, nine hundred seventy-eight".