79631759 has 2 divisors, whose sum is σ = 79631760. Its totient is φ = 79631758.

The previous prime is 79631749. The next prime is 79631789. The reversal of 79631759 is 95713697.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79631759 - 2²⁴ = 62854543 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79631719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39815879 + 39815880.

It is an arithmetic number, because the mean of its divisors is an integer number (39815880).

Almost surely, 2^79631759 is an apocalyptic number.

79631759 is a deficient number, since it is larger than the sum of its proper divisors (1).

79631759 is an equidigital number, since it uses as much as digits as its factorization.

79631759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 357210, while the sum is 47.

The square root of 79631759 is about 8923.6628690241. The cubic root of 79631759 is about 430.2247950267.

The spelling of 79631759 in words is "seventy-nine million, six hundred thirty-one thousand, seven hundred fifty-nine".