78894956 has 12 divisors (see below), whose sum is σ = 157789968. Its totient is φ = 33812112.

The previous prime is 78894953. The next prime is 78894967. The reversal of 78894956 is 65949887.

78894956 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (78894953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1408811 + ... + 1408866.

It is an arithmetic number, because the mean of its divisors is an integer number (13149164).

Almost surely, 2^78894956 is an apocalyptic number.

It is an amenable number.

78894956 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78894956 is a wasteful number, since it uses less digits than its factorization.

78894956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817688 (or 2817686 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 56.

The square root of 78894956 is about 8882.2832650169. The cubic root of 78894956 is about 428.8937781615.

The spelling of 78894956 in words is "seventy-eight million, eight hundred ninety-four thousand, nine hundred fifty-six".