78923164 has 12 divisors (see below), whose sum is σ = 138384288. Its totient is φ = 39384800.

The previous prime is 78923161. The next prime is 78923167. The reversal of 78923164 is 46132987.

It is an interprime number because it is at equal distance from previous prime (78923161) and next prime (78923167).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78923161) 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, 16852 + ... + 21019.

It is an arithmetic number, because the mean of its divisors is an integer number (11532024).

Almost surely, 2^78923164 is an apocalyptic number.

It is an amenable number.

78923164 is a deficient number, since it is larger than the sum of its proper divisors (59461124).

78923164 is a wasteful number, since it uses less digits than its factorization.

78923164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38396 (or 38394 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 78923164 is about 8883.8710031157. The cubic root of 78923164 is about 428.9448874454.

The spelling of 78923164 in words is "seventy-eight million, nine hundred twenty-three thousand, one hundred sixty-four".