78580928 has 28 divisors (see below), whose sum is σ = 159742632. Its totient is φ = 38330880.

The previous prime is 78580889. The next prime is 78580937. The reversal of 78580928 is 82908587.

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 3 ways as a sum of consecutive naturals, for example, 12350 + ... + 17597.

It is an arithmetic number, because the mean of its divisors is an integer number (5705094).

Almost surely, 2^78580928 is an apocalyptic number.

It is an amenable number.

78580928 is an abundant number, since it is smaller than the sum of its proper divisors (81161704).

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

78580928 is a wasteful number, since it uses less digits than its factorization.

78580928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30000 (or 29990 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 47.

The square root of 78580928 is about 8864.5884281223. The cubic root of 78580928 is about 428.3239751606.

The spelling of 78580928 in words is "seventy-eight million, five hundred eighty thousand, nine hundred twenty-eight".