79749164 has 18 divisors (see below), whose sum is σ = 153402732. Its totient is φ = 36249400.

The previous prime is 79749161. The next prime is 79749169. The reversal of 79749164 is 46194797.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (79749161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81902 + ... + 82869.

It is an arithmetic number, because the mean of its divisors is an integer number (8522374).

Almost surely, 2^79749164 is an apocalyptic number.

It is an amenable number.

79749164 is a deficient number, since it is larger than the sum of its proper divisors (73653568).

79749164 is a wasteful number, since it uses less digits than its factorization.

79749164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164797 (or 164784 counting only the distinct ones).

The product of its digits is 381024, while the sum is 47.

The square root of 79749164 is about 8930.2387426093. The cubic root of 79749164 is about 430.4361250271.

The spelling of 79749164 in words is "seventy-nine million, seven hundred forty-nine thousand, one hundred sixty-four".