79997250 has 32 divisors (see below), whose sum is σ = 199675008. Its totient is φ = 21332400.

The previous prime is 79997237. The next prime is 79997251. The reversal of 79997250 is 5279997.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79997250.

It is not an unprimeable number, because it can be changed into a prime (79997251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52582 + ... + 54081.

It is an arithmetic number, because the mean of its divisors is an integer number (6239844).

Almost surely, 2^79997250 is an apocalyptic number.

79997250 is an abundant number, since it is smaller than the sum of its proper divisors (119677758).

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

79997250 is a wasteful number, since it uses less digits than its factorization.

79997250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106683 (or 106673 counting only the distinct ones).

The product of its (nonzero) digits is 357210, while the sum is 48.

The square root of 79997250 is about 8944.1181790046. The cubic root of 79997250 is about 430.8820007036.

The spelling of 79997250 in words is "seventy-nine million, nine hundred ninety-seven thousand, two hundred fifty".