79722738 has 32 divisors (see below), whose sum is σ = 184867200. Its totient is φ = 25418448.

The previous prime is 79722691. The next prime is 79722739. The reversal of 79722738 is 83722797.

It is a junction number, because it is equal to n+sod(n) for n = 79722693 and 79722702.

It is not an unprimeable number, because it can be changed into a prime (79722739) 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, 30853 + ... + 33336.

It is an arithmetic number, because the mean of its divisors is an integer number (5777100).

Almost surely, 2^79722738 is an apocalyptic number.

79722738 is an abundant number, since it is smaller than the sum of its proper divisors (105144462).

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

79722738 is a wasteful number, since it uses less digits than its factorization.

79722738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64223 (or 64217 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 79722738 is about 8928.7590403146. The cubic root of 79722738 is about 430.3885760996.

The spelling of 79722738 in words is "seventy-nine million, seven hundred twenty-two thousand, seven hundred thirty-eight".