79456289 has 16 divisors (see below), whose sum is σ = 88482240. Its totient is φ = 70748160.

The previous prime is 79456277. The next prime is 79456291. The reversal of 79456289 is 98265497.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79456289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79456229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120242 + ... + 120900.

It is an arithmetic number, because the mean of its divisors is an integer number (5530140).

Almost surely, 2^79456289 is an apocalyptic number.

It is an amenable number.

79456289 is a deficient number, since it is larger than the sum of its proper divisors (9025951).

79456289 is a wasteful number, since it uses less digits than its factorization.

79456289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880.

The product of its digits is 1088640, while the sum is 50.

The square root of 79456289 is about 8913.8257218772. The cubic root of 79456289 is about 429.9085599688.

The spelling of 79456289 in words is "seventy-nine million, four hundred fifty-six thousand, two hundred eighty-nine".