79805636 has 12 divisors (see below), whose sum is σ = 141016512. Its totient is φ = 39515208.

The previous prime is 79805603. The next prime is 79805647. The reversal of 79805636 is 63650897.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96440 + ... + 97263.

It is an arithmetic number, because the mean of its divisors is an integer number (11751376).

Almost surely, 2^79805636 is an apocalyptic number.

It is an amenable number.

79805636 is a deficient number, since it is larger than the sum of its proper divisors (61210876).

79805636 is a wasteful number, since it uses less digits than its factorization.

79805636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193810 (or 193808 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 79805636 is about 8933.4000246267. The cubic root of 79805636 is about 430.5377012373.

The spelling of 79805636 in words is "seventy-nine million, eight hundred five thousand, six hundred thirty-six".