79979750 has 16 divisors (see below), whose sum is σ = 149722560. Its totient is φ = 31991800.

The previous prime is 79979743. The next prime is 79979771. The reversal of 79979750 is 5797997.

It is a junction number, because it is equal to n+sod(n) for n = 79979692 and 79979701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159710 + ... + 160209.

It is an arithmetic number, because the mean of its divisors is an integer number (9357660).

Almost surely, 2^79979750 is an apocalyptic number.

79979750 is a deficient number, since it is larger than the sum of its proper divisors (69742810).

79979750 is a wasteful number, since it uses less digits than its factorization.

79979750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319936 (or 319926 counting only the distinct ones).

The product of its (nonzero) digits is 1250235, while the sum is 53.

The square root of 79979750 is about 8943.1398289415. The cubic root of 79979750 is about 430.8505788530.

The spelling of 79979750 in words is "seventy-nine million, nine hundred seventy-nine thousand, seven hundred fifty".