79564529 has 4 divisors (see below), whose sum is σ = 86797680. Its totient is φ = 72331380.

The previous prime is 79564493. The next prime is 79564549. The reversal of 79564529 is 92546597.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 79564529 - 2¹² = 79560433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79564549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3616559 + ... + 3616580.

It is an arithmetic number, because the mean of its divisors is an integer number (21699420).

Almost surely, 2^79564529 is an apocalyptic number.

It is an amenable number.

79564529 is a deficient number, since it is larger than the sum of its proper divisors (7233151).

79564529 is a wasteful number, since it uses less digits than its factorization.

79564529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7233150.

The product of its digits is 680400, while the sum is 47.

The square root of 79564529 is about 8919.8951227018. The cubic root of 79564529 is about 430.1036869121.

The spelling of 79564529 in words is "seventy-nine million, five hundred sixty-four thousand, five hundred twenty-nine".