79582809 has 12 divisors (see below), whose sum is σ = 108643056. Its totient is φ = 51817752.

The previous prime is 79582793. The next prime is 79582823. The reversal of 79582809 is 90828597.

It is a happy number.

It is not a de Polignac number, because 79582809 - 2⁴ = 79582793 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79582879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1627 + ... + 12720.

It is an arithmetic number, because the mean of its divisors is an integer number (9053588).

Almost surely, 2^79582809 is an apocalyptic number.

It is an amenable number.

79582809 is a deficient number, since it is larger than the sum of its proper divisors (29060247).

79582809 is a wasteful number, since it uses less digits than its factorization.

79582809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14436 (or 14393 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 79582809 is about 8920.9197395784. The cubic root of 79582809 is about 430.1366232530.

The spelling of 79582809 in words is "seventy-nine million, five hundred eighty-two thousand, eight hundred nine".