79511013 has 24 divisors (see below), whose sum is σ = 118512576. Its totient is φ = 51336000.

The previous prime is 79510993. The next prime is 79511021. The reversal of 79511013 is 31011597.

It is a happy number.

It is not a de Polignac number, because 79511013 - 2¹⁶ = 79445477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79511083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55006 + ... + 56432.

It is an arithmetic number, because the mean of its divisors is an integer number (4938024).

Almost surely, 2^79511013 is an apocalyptic number.

It is an amenable number.

79511013 is a deficient number, since it is larger than the sum of its proper divisors (39001563).

79511013 is a wasteful number, since it uses less digits than its factorization.

79511013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625 (or 1622 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 27.

The square root of 79511013 is about 8916.8948070503. The cubic root of 79511013 is about 430.0072344195.

The spelling of 79511013 in words is "seventy-nine million, five hundred eleven thousand, thirteen".