79945964 has 12 divisors (see below), whose sum is σ = 159891984. Its totient is φ = 34262544.

The previous prime is 79945963. The next prime is 79945969. The reversal of 79945964 is 46954997.

79945964 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (79945963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1427579 + ... + 1427634.

It is an arithmetic number, because the mean of its divisors is an integer number (13324332).

Almost surely, 2^79945964 is an apocalyptic number.

It is an amenable number.

79945964 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

79945964 is a wasteful number, since it uses less digits than its factorization.

79945964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855224 (or 2855222 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 53.

The square root of 79945964 is about 8941.2506955123. The cubic root of 79945964 is about 430.7899019613.

The spelling of 79945964 in words is "seventy-nine million, nine hundred forty-five thousand, nine hundred sixty-four".