78655896 has 96 divisors (see below), whose sum is σ = 244670400. Its totient is φ = 22576320.

The previous prime is 78655771. The next prime is 78655919. The reversal of 78655896 is 69855687.

78655896 is a `hidden beast` number, since 7 + 86 + 558 + 9 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12435 + ... + 17661.

It is an arithmetic number, because the mean of its divisors is an integer number (2548650).

Almost surely, 2^78655896 is an apocalyptic number.

78655896 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78655896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122335200).

78655896 is an abundant number, since it is smaller than the sum of its proper divisors (166014504).

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

78655896 is a wasteful number, since it uses less digits than its factorization.

78655896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5269 (or 5262 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 78655896 is about 8868.8159299875. The cubic root of 78655896 is about 428.4601421526.

The spelling of 78655896 in words is "seventy-eight million, six hundred fifty-five thousand, eight hundred ninety-six".