78583928 has 32 divisors (see below), whose sum is σ = 157172400. Its totient is φ = 36705792.

The previous prime is 78583927. The next prime is 78583937. The reversal of 78583928 is 82938587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78583927) 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, 16826 + ... + 20982.

Almost surely, 2^78583928 is an apocalyptic number.

It is an amenable number.

78583928 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

78583928 is a wasteful number, since it uses less digits than its factorization.

78583928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4319 (or 4315 counting only the distinct ones).

The product of its digits is 967680, while the sum is 50.

The square root of 78583928 is about 8864.7576391010. The cubic root of 78583928 is about 428.3294258283.

The spelling of 78583928 in words is "seventy-eight million, five hundred eighty-three thousand, nine hundred twenty-eight".