79976280 has 64 divisors (see below), whose sum is σ = 247680000. Its totient is φ = 20638080.

The previous prime is 79976233. The next prime is 79976297. The reversal of 79976280 is 8267997.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7030 + ... + 14469.

It is an arithmetic number, because the mean of its divisors is an integer number (3870000).

Almost surely, 2^79976280 is an apocalyptic number.

It is an amenable number.

79976280 is an abundant number, since it is smaller than the sum of its proper divisors (167703720).

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

79976280 is a wasteful number, since it uses less digits than its factorization.

79976280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21544 (or 21540 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 79976280 is about 8942.9458233850. The cubic root of 79976280 is about 430.8443478044.

The spelling of 79976280 in words is "seventy-nine million, nine hundred seventy-six thousand, two hundred eighty".