79987372 has 12 divisors (see below), whose sum is σ = 140918400. Its totient is φ = 39724976.

The previous prime is 79987367. The next prime is 79987459. The reversal of 79987372 is 27378997.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66508 + ... + 67699.

It is an arithmetic number, because the mean of its divisors is an integer number (11743200).

Almost surely, 2^79987372 is an apocalyptic number.

It is an amenable number.

79987372 is a deficient number, since it is larger than the sum of its proper divisors (60931028).

79987372 is a wasteful number, since it uses less digits than its factorization.

79987372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134360 (or 134358 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 52.

The square root of 79987372 is about 8943.5659554788. The cubic root of 79987372 is about 430.8642649790.

The spelling of 79987372 in words is "seventy-nine million, nine hundred eighty-seven thousand, three hundred seventy-two".