79859844 has 60 divisors (see below), whose sum is σ = 215531008. Its totient is φ = 25758000.

The previous prime is 79859839. The next prime is 79859851. The reversal of 79859844 is 44895897.

79859844 is a `hidden beast` number, since 7 + 9 + 8 + 598 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6069 + ... + 14019.

Almost surely, 2^79859844 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 79859844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107765504).

79859844 is an abundant number, since it is smaller than the sum of its proper divisors (135671164).

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

79859844 is a wasteful number, since it uses less digits than its factorization.

79859844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7998 (or 7987 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 79859844 is about 8936.4335167896. The cubic root of 79859844 is about 430.6351601246.

The spelling of 79859844 in words is "seventy-nine million, eight hundred fifty-nine thousand, eight hundred forty-four".