79800084 has 72 divisors (see below), whose sum is σ = 248277120. Its totient is φ = 21045312.

The previous prime is 79800067. The next prime is 79800109. The reversal of 79800084 is 48000897.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8904 + ... + 15455.

Almost surely, 2^79800084 is an apocalyptic number.

It is an amenable number.

79800084 is an abundant number, since it is smaller than the sum of its proper divisors (168477036).

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

79800084 is a wasteful number, since it uses less digits than its factorization.

79800084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24389 (or 24384 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 79800084 is about 8933.0892752731. The cubic root of 79800084 is about 430.5277169770.

The spelling of 79800084 in words is "seventy-nine million, eight hundred thousand, eighty-four".