79091129 has 16 divisors (see below), whose sum is σ = 90007680. Its totient is φ = 69086736.

The previous prime is 79091107. The next prime is 79091141. The reversal of 79091129 is 92119097.

It is a de Polignac number, because none of the positive numbers 2^k-79091129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79091092 and 79091101.

It is not an unprimeable number, because it can be changed into a prime (79091179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88724 + ... + 89610.

It is an arithmetic number, because the mean of its divisors is an integer number (5625480).

Almost surely, 2^79091129 is an apocalyptic number.

It is an amenable number.

79091129 is a deficient number, since it is larger than the sum of its proper divisors (10916551).

79091129 is an equidigital number, since it uses as much as digits as its factorization.

79091129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 38.

The square root of 79091129 is about 8893.3193465657. The cubic root of 79091129 is about 429.2489666445.

It can be divided in two parts, 790 and 91129, that added together give a palindrome (91919).

The spelling of 79091129 in words is "seventy-nine million, ninety-one thousand, one hundred twenty-nine".