78916464 has 80 divisors (see below), whose sum is σ = 247127040. Its totient is φ = 23912640.

The previous prime is 78916441. The next prime is 78916471. The reversal of 78916464 is 46461987.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3552 + ... + 13055.

It is an arithmetic number, because the mean of its divisors is an integer number (3089088).

Almost surely, 2^78916464 is an apocalyptic number.

It is an amenable number.

78916464 is an abundant number, since it is smaller than the sum of its proper divisors (168210576).

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

78916464 is a wasteful number, since it uses less digits than its factorization.

78916464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16635 (or 16623 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 78916464 is about 8883.4939072417. The cubic root of 78916464 is about 428.9327490063.

The spelling of 78916464 in words is "seventy-eight million, nine hundred sixteen thousand, four hundred sixty-four".