79563668 has 24 divisors (see below), whose sum is σ = 143697792. Its totient is φ = 38525184.

The previous prime is 79563667. The next prime is 79563677. The reversal of 79563668 is 86636597.

It is a super-2 number, since 2×79563668² = 12660754531228448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79563667) 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 7 ways as a sum of consecutive naturals, for example, 16055 + ... + 20417.

It is an arithmetic number, because the mean of its divisors is an integer number (5987408).

Almost surely, 2^79563668 is an apocalyptic number.

It is an amenable number.

79563668 is a deficient number, since it is larger than the sum of its proper divisors (64134124).

79563668 is a wasteful number, since it uses less digits than its factorization.

79563668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4511 (or 4509 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 50.

The square root of 79563668 is about 8919.8468596720. The cubic root of 79563668 is about 430.1021354644.

The spelling of 79563668 in words is "seventy-nine million, five hundred sixty-three thousand, six hundred sixty-eight".