79664353 has 16 divisors (see below), whose sum is σ = 84650832. Its totient is φ = 74880000.

The previous prime is 79664317. The next prime is 79664357. The reversal of 79664353 is 35346697.

It can be written as a sum of positive squares in 8 ways, for example, as 6185169 + 73479184 = 2487^2 + 8572^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79664353 is a prime.

It is a Duffinian number.

Its product of digits (408240) is a multiple of the sum of its prime divisors (756).

It is not an unprimeable number, because it can be changed into a prime (79664357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132253 + ... + 132853.

It is an arithmetic number, because the mean of its divisors is an integer number (5290677).

Almost surely, 2^79664353 is an apocalyptic number.

It is an amenable number.

79664353 is a deficient number, since it is larger than the sum of its proper divisors (4986479).

79664353 is a wasteful number, since it uses less digits than its factorization.

79664353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756.

The product of its digits is 408240, while the sum is 43.

The square root of 79664353 is about 8925.4889501920. The cubic root of 79664353 is about 430.2834853213.

The spelling of 79664353 in words is "seventy-nine million, six hundred sixty-four thousand, three hundred fifty-three".