79344729 has 24 divisors (see below), whose sum is σ = 121709952. Its totient is φ = 49637760.

The previous prime is 79344689. The next prime is 79344731. The reversal of 79344729 is 92744397.

It is a de Polignac number, because none of the positive numbers 2^k-79344729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79344329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76444 + ... + 77474.

It is an arithmetic number, because the mean of its divisors is an integer number (5071248).

Almost surely, 2^79344729 is an apocalyptic number.

It is an amenable number.

79344729 is a deficient number, since it is larger than the sum of its proper divisors (42365223).

79344729 is a wasteful number, since it uses less digits than its factorization.

79344729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1554 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 79344729 is about 8907.5658291140. The cubic root of 79344729 is about 429.7072624449.

The spelling of 79344729 in words is "seventy-nine million, three hundred forty-four thousand, seven hundred twenty-nine".