79663506 has 16 divisors (see below), whose sum is σ = 171583104. Its totient is φ = 24511824.

The previous prime is 79663501. The next prime is 79663579. The reversal of 79663506 is 60536697.

It is not an unprimeable number, because it can be changed into a prime (79663501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510586 + ... + 510741.

It is an arithmetic number, because the mean of its divisors is an integer number (10723944).

Almost surely, 2^79663506 is an apocalyptic number.

79663506 is an abundant number, since it is smaller than the sum of its proper divisors (91919598).

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

79663506 is a wasteful number, since it uses less digits than its factorization.

79663506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021345.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 79663506 is about 8925.4415016849. The cubic root of 79663506 is about 430.2819603758.

The spelling of 79663506 in words is "seventy-nine million, six hundred sixty-three thousand, five hundred six".