79680860 has 36 divisors (see below), whose sum is σ = 194651352. Its totient is φ = 27318816.

The previous prime is 79680841. The next prime is 79680863. The reversal of 79680860 is 6808697.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79680863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39674 + ... + 41633.

It is an arithmetic number, because the mean of its divisors is an integer number (5406982).

Almost surely, 2^79680860 is an apocalyptic number.

79680860 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

79680860 is an abundant number, since it is smaller than the sum of its proper divisors (114970492).

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

79680860 is a wasteful number, since it uses less digits than its factorization.

79680860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81330 (or 81321 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 79680860 is about 8926.4136135404. The cubic root of 79680860 is about 430.3132024981.

The spelling of 79680860 in words is "seventy-nine million, six hundred eighty thousand, eight hundred sixty".