79765291 has 2 divisors, whose sum is σ = 79765292. Its totient is φ = 79765290.

The previous prime is 79765267. The next prime is 79765307. The reversal of 79765291 is 19256797.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79765291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79765261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39882645 + 39882646.

It is an arithmetic number, because the mean of its divisors is an integer number (39882646).

Almost surely, 2^79765291 is an apocalyptic number.

79765291 is a deficient number, since it is larger than the sum of its proper divisors (1).

79765291 is an equidigital number, since it uses as much as digits as its factorization.

79765291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 46.

The square root of 79765291 is about 8931.1416403504. The cubic root of 79765291 is about 430.4651375592.

The spelling of 79765291 in words is "seventy-nine million, seven hundred sixty-five thousand, two hundred ninety-one".