79856 has 40 divisors (see below), whose sum is σ = 190464. Its totient is φ = 31680.

The previous prime is 79847. The next prime is 79861. The reversal of 79856 is 65897.

Its product of digits (15120) is a multiple of the sum of its prime divisors (63).

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, 2561 + ... + 2591.

2⁷⁹⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95232).

79856 is an abundant number, since it is smaller than the sum of its proper divisors (110608).

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

79856 is a wasteful number, since it uses less digits than its factorization.

79856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 63 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 79856 is about 282.5880393789. The cubic root of 79856 is about 43.0628250569.

The spelling of 79856 in words is "seventy-nine thousand, eight hundred fifty-six".