79776906 has 16 divisors (see below), whose sum is σ = 174058848. Its totient is φ = 24174800.

The previous prime is 79776901. The next prime is 79776913. The reversal of 79776906 is 60967797.

It is not an unprimeable number, because it can be changed into a prime (79776901) 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, 604305 + ... + 604436.

It is an arithmetic number, because the mean of its divisors is an integer number (10878678).

Almost surely, 2^79776906 is an apocalyptic number.

79776906 is an abundant number, since it is smaller than the sum of its proper divisors (94281942).

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

79776906 is a wasteful number, since it uses less digits than its factorization.

79776906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208757.

The product of its (nonzero) digits is 1000188, while the sum is 51.

The square root of 79776906 is about 8931.7918694963. The cubic root of 79776906 is about 430.4860305643.

The spelling of 79776906 in words is "seventy-nine million, seven hundred seventy-six thousand, nine hundred six".