79947356 has 12 divisors (see below), whose sum is σ = 145990992. Its totient is φ = 38235648.

The previous prime is 79947353. The next prime is 79947359. The reversal of 79947356 is 65374997.

It is an interprime number because it is at equal distance from previous prime (79947353) and next prime (79947359).

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79947353) 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, 434405 + ... + 434588.

It is an arithmetic number, because the mean of its divisors is an integer number (12165916).

Almost surely, 2^79947356 is an apocalyptic number.

It is an amenable number.

79947356 is a deficient number, since it is larger than the sum of its proper divisors (66043636).

79947356 is a wasteful number, since it uses less digits than its factorization.

79947356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869020 (or 869018 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 50.

The square root of 79947356 is about 8941.3285366326. The cubic root of 79947356 is about 430.7924022171.

The spelling of 79947356 in words is "seventy-nine million, nine hundred forty-seven thousand, three hundred fifty-six".