79923011 has 4 divisors (see below), whose sum is σ = 91340592. Its totient is φ = 68505432.

The previous prime is 79923007. The next prime is 79923029. The reversal of 79923011 is 11032997.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 79923011 - 2² = 79923007 is a prime.

It is a super-2 number, since 2×79923011² = 12775375374612242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79953011) 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, 5708780 + ... + 5708793.

It is an arithmetic number, because the mean of its divisors is an integer number (22835148).

Almost surely, 2^79923011 is an apocalyptic number.

79923011 is a deficient number, since it is larger than the sum of its proper divisors (11417581).

79923011 is a wasteful number, since it uses less digits than its factorization.

79923011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11417580.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 79923011 is about 8939.9670581049. The cubic root of 79923011 is about 430.7486704988.

The spelling of 79923011 in words is "seventy-nine million, nine hundred twenty-three thousand, eleven".