79664833 has 2 divisors, whose sum is σ = 79664834. Its totient is φ = 79664832.

The previous prime is 79664789. The next prime is 79664881. The reversal of 79664833 is 33846697.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63888049 + 15776784 = 7993^2 + 3972^2 .

It is an emirp because it is prime and its reverse (33846697) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79664833 is a prime.

It is not a weakly prime, because it can be changed into another prime (79664033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39832416 + 39832417.

It is an arithmetic number, because the mean of its divisors is an integer number (39832417).

Almost surely, 2^79664833 is an apocalyptic number.

It is an amenable number.

79664833 is a deficient number, since it is larger than the sum of its proper divisors (1).

79664833 is an equidigital number, since it uses as much as digits as its factorization.

79664833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 46.

The square root of 79664833 is about 8925.5158394347. The cubic root of 79664833 is about 430.2843495124.

The spelling of 79664833 in words is "seventy-nine million, six hundred sixty-four thousand, eight hundred thirty-three".