79111906 has 4 divisors (see below), whose sum is σ = 118667862. Its totient is φ = 39555952.

The previous prime is 79111871. The next prime is 79111961. The reversal of 79111906 is 60911197.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 41718681 + 37393225 = 6459^2 + 6115^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19777975 + ... + 19777978.

Almost surely, 2^79111906 is an apocalyptic number.

79111906 is a deficient number, since it is larger than the sum of its proper divisors (39555956).

79111906 is a wasteful number, since it uses less digits than its factorization.

79111906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39555955.

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 79111906 is about 8894.4873938862. The cubic root of 79111906 is about 429.2865508213.

The spelling of 79111906 in words is "seventy-nine million, one hundred eleven thousand, nine hundred six".