79663772 has 12 divisors (see below), whose sum is σ = 140849520. Its totient is φ = 39421056.

The previous prime is 79663741. The next prime is 79663777. The reversal of 79663772 is 27736697.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79663777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102272 + ... + 103047.

It is an arithmetic number, because the mean of its divisors is an integer number (11737460).

Almost surely, 2^79663772 is an apocalyptic number.

It is an amenable number.

79663772 is a deficient number, since it is larger than the sum of its proper divisors (61185748).

79663772 is a wasteful number, since it uses less digits than its factorization.

79663772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205420 (or 205418 counting only the distinct ones).

The product of its digits is 666792, while the sum is 47.

The square root of 79663772 is about 8925.4564028962. The cubic root of 79663772 is about 430.2824392855.

The spelling of 79663772 in words is "seventy-nine million, six hundred sixty-three thousand, seven hundred seventy-two".