79996860 has 72 divisors (see below), whose sum is σ = 243537840. Its totient is φ = 21255168.

The previous prime is 79996837. The next prime is 79996879. The reversal of 79996860 is 6869997.

It is a junction number, because it is equal to n+sod(n) for n = 79996797 and 79996806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62911 + ... + 64169.

It is an arithmetic number, because the mean of its divisors is an integer number (3382470).

Almost surely, 2^79996860 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 79996860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121768920).

79996860 is an abundant number, since it is smaller than the sum of its proper divisors (163540980).

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

79996860 is a wasteful number, since it uses less digits than its factorization.

79996860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627 (or 1622 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 79996860 is about 8944.0963769405. The cubic root of 79996860 is about 430.8813004952.

The spelling of 79996860 in words is "seventy-nine million, nine hundred ninety-six thousand, eight hundred sixty".