79964263 has 2 divisors, whose sum is σ = 79964264. Its totient is φ = 79964262.

The previous prime is 79964257. The next prime is 79964279. The reversal of 79964263 is 36246997.

It is a weak prime.

It is an emirp because it is prime and its reverse (36246997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79964263 - 2⁵ = 79964231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79962263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39982131 + 39982132.

It is an arithmetic number, because the mean of its divisors is an integer number (39982132).

Almost surely, 2^79964263 is an apocalyptic number.

79964263 is a deficient number, since it is larger than the sum of its proper divisors (1).

79964263 is an equidigital number, since it uses as much as digits as its factorization.

79964263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 46.

The square root of 79964263 is about 8942.2739278105. The cubic root of 79964263 is about 430.8227675898.

The spelling of 79964263 in words is "seventy-nine million, nine hundred sixty-four thousand, two hundred sixty-three".