79645751 has 2 divisors, whose sum is σ = 79645752. Its totient is φ = 79645750.

The previous prime is 79645733. The next prime is 79645759. The reversal of 79645751 is 15754697.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79645751 - 2¹⁴ = 79629367 is a 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 (79645759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39822875 + 39822876.

It is an arithmetic number, because the mean of its divisors is an integer number (39822876).

Almost surely, 2^79645751 is an apocalyptic number.

79645751 is a deficient number, since it is larger than the sum of its proper divisors (1).

79645751 is an equidigital number, since it uses as much as digits as its factorization.

79645751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264600, while the sum is 44.

The square root of 79645751 is about 8924.4468175904. The cubic root of 79645751 is about 430.2499916437.

The spelling of 79645751 in words is "seventy-nine million, six hundred forty-five thousand, seven hundred fifty-one".