79952609 has 12 divisors (see below), whose sum is σ = 89319312. Its totient is φ = 70975800.

The previous prime is 79952591. The next prime is 79952633. The reversal of 79952609 is 90625997.

It is a de Polignac number, because none of the positive numbers 2^k-79952609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79952659) 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, 18374 + ... + 22304.

It is an arithmetic number, because the mean of its divisors is an integer number (7443276).

Almost surely, 2^79952609 is an apocalyptic number.

It is an amenable number.

79952609 is a deficient number, since it is larger than the sum of its proper divisors (9366703).

79952609 is a wasteful number, since it uses less digits than its factorization.

79952609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4028 (or 3985 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 79952609 is about 8941.6222801011. The cubic root of 79952609 is about 430.8018371879.

The spelling of 79952609 in words is "seventy-nine million, nine hundred fifty-two thousand, six hundred nine".