79793990 has 16 divisors (see below), whose sum is σ = 143894448. Its totient is φ = 31858656.

The previous prime is 79793963. The next prime is 79794007. The reversal of 79793990 is 9939797.

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, 1457 + ... + 12716.

It is an arithmetic number, because the mean of its divisors is an integer number (8993403).

Almost surely, 2^79793990 is an apocalyptic number.

79793990 is a deficient number, since it is larger than the sum of its proper divisors (64100458).

79793990 is a wasteful number, since it uses less digits than its factorization.

79793990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14743.

The product of its (nonzero) digits is 964467, while the sum is 53.

The square root of 79793990 is about 8932.7481773528. The cubic root of 79793990 is about 430.5167574952.

It can be divided in two parts, 7979 and 3990, that multiplied together give a triangular number (31836210 = T₇₉₇₉).

The spelling of 79793990 in words is "seventy-nine million, seven hundred ninety-three thousand, nine hundred ninety".