78735996 has 24 divisors (see below), whose sum is σ = 204130640. Its totient is φ = 26245296.

The previous prime is 78735973. The next prime is 78736003. The reversal of 78735996 is 69953787.

It is a super-2 number, since 2×78735996² = 12398714132224032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 364411 + ... + 364626.

Almost surely, 2^78735996 is an apocalyptic number.

It is an amenable number.

78735996 is an abundant number, since it is smaller than the sum of its proper divisors (125394644).

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

78735996 is a wasteful number, since it uses less digits than its factorization.

78735996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729050 (or 729042 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 78735996 is about 8873.3306035558. The cubic root of 78735996 is about 428.6055350000.

The spelling of 78735996 in words is "seventy-eight million, seven hundred thirty-five thousand, nine hundred ninety-six".