78039016 has 16 divisors (see below), whose sum is σ = 159625440. Its totient is φ = 35472240.

The previous prime is 78039001. The next prime is 78039037. The reversal of 78039016 is 61093087.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443316 + ... + 443491.

It is an arithmetic number, because the mean of its divisors is an integer number (9976590).

Almost surely, 2^78039016 is an apocalyptic number.

It is an amenable number.

78039016 is an abundant number, since it is smaller than the sum of its proper divisors (81586424).

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

78039016 is a wasteful number, since it uses less digits than its factorization.

78039016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886824 (or 886820 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 78039016 is about 8833.9694362161. The cubic root of 78039016 is about 427.3370964876.

The spelling of 78039016 in words is "seventy-eight million, thirty-nine thousand, sixteen".