79886628 has 96 divisors (see below), whose sum is σ = 216760320. Its totient is φ = 25414560.

The previous prime is 79886627. The next prime is 79886629. The reversal of 79886628 is 82668897.

79886628 is a `hidden beast` number, since 7 + 9 + 8 + 8 + 6 + 628 = 666.

It is an interprime number because it is at equal distance from previous prime (79886627) and next prime (79886629).

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

It is not an unprimeable number, because it can be changed into a prime (79886623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 358125 + ... + 358347.

It is an arithmetic number, because the mean of its divisors is an integer number (2257920).

Almost surely, 2^79886628 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 79886628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108380160).

79886628 is an abundant number, since it is smaller than the sum of its proper divisors (136873692).

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

79886628 is a wasteful number, since it uses less digits than its factorization.

79886628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 366 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 79886628 is about 8937.9319755747. The cubic root of 79886628 is about 430.6832979718.

The spelling of 79886628 in words is "seventy-nine million, eight hundred eighty-six thousand, six hundred twenty-eight".