78704536 has 32 divisors (see below), whose sum is σ = 160358400. Its totient is φ = 36076320.

The previous prime is 78704519. The next prime is 78704573. The reversal of 78704536 is 63540787.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3640 + ... + 13063.

It is an arithmetic number, because the mean of its divisors is an integer number (5011200).

Almost surely, 2^78704536 is an apocalyptic number.

78704536 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

78704536 is an abundant number, since it is smaller than the sum of its proper divisors (81653864).

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

78704536 is a wasteful number, since it uses less digits than its factorization.

78704536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16759 (or 16755 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 78704536 is about 8871.5576986232. The cubic root of 78704536 is about 428.5484424074.

The spelling of 78704536 in words is "seventy-eight million, seven hundred four thousand, five hundred thirty-six".