79271651 has 2 divisors, whose sum is σ = 79271652. Its totient is φ = 79271650.

The previous prime is 79271611. The next prime is 79271659. The reversal of 79271651 is 15617297.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79271651 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79271659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39635825 + 39635826.

It is an arithmetic number, because the mean of its divisors is an integer number (39635826).

Almost surely, 2^79271651 is an apocalyptic number.

79271651 is a deficient number, since it is larger than the sum of its proper divisors (1).

79271651 is an equidigital number, since it uses as much as digits as its factorization.

79271651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 38.

The square root of 79271651 is about 8903.4628656495. The cubic root of 79271651 is about 429.5752990773.

The spelling of 79271651 in words is "seventy-nine million, two hundred seventy-one thousand, six hundred fifty-one".