79008911 has 4 divisors (see below), whose sum is σ = 83656512. Its totient is φ = 74361312.

The previous prime is 79008901. The next prime is 79008913. The reversal of 79008911 is 11980097.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11980097 = 271 ⋅44207.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79008911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79008913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2323775 + ... + 2323808.

It is an arithmetic number, because the mean of its divisors is an integer number (20914128).

Almost surely, 2^79008911 is an apocalyptic number.

79008911 is a deficient number, since it is larger than the sum of its proper divisors (4647601).

79008911 is a wasteful number, since it uses less digits than its factorization.

79008911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4647600.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 79008911 is about 8888.6956860948. The cubic root of 79008911 is about 429.1001752940.

The spelling of 79008911 in words is "seventy-nine million, eight thousand, nine hundred eleven".