79091012 has 48 divisors (see below), whose sum is σ = 185845632. Its totient is φ = 28442880.

The previous prime is 79091011. The next prime is 79091017. The reversal of 79091012 is 21019097.

It is not an unprimeable number, because it can be changed into a prime (79091011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5873 + ... + 13880.

It is an arithmetic number, because the mean of its divisors is an integer number (3871784).

Almost surely, 2^79091012 is an apocalyptic number.

It is an amenable number.

79091012 is an abundant number, since it is smaller than the sum of its proper divisors (106754620).

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

79091012 is a wasteful number, since it uses less digits than its factorization.

79091012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19788 (or 19786 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 79091012 is about 8893.3127685919. The cubic root of 79091012 is about 429.2487549808.

The spelling of 79091012 in words is "seventy-nine million, ninety-one thousand, twelve".