79619944 has 8 divisors (see below), whose sum is σ = 149287410. Its totient is φ = 39809968.

The previous prime is 79619933. The next prime is 79619971. The reversal of 79619944 is 44991697.

It can be written as a sum of positive squares in only one way, i.e., 75864100 + 3755844 = 8710^2 + 1938^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4976239 + ... + 4976254.

Almost surely, 2^79619944 is an apocalyptic number.

It is an amenable number.

79619944 is a deficient number, since it is larger than the sum of its proper divisors (69667466).

79619944 is a wasteful number, since it uses less digits than its factorization.

79619944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9952499 (or 9952495 counting only the distinct ones).

The product of its digits is 489888, while the sum is 49.

The square root of 79619944 is about 8923.0008405244. Note that the first 3 decimals coincide. The cubic root of 79619944 is about 430.2035164254.

The spelling of 79619944 in words is "seventy-nine million, six hundred nineteen thousand, nine hundred forty-four".