79297961 has 2 divisors, whose sum is σ = 79297962. Its totient is φ = 79297960.

The previous prime is 79297943. The next prime is 79298003. The reversal of 79297961 is 16979297.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73633561 + 5664400 = 8581^2 + 2380^2 .

It is a cyclic number.

It is not a de Polignac number, because 79297961 - 2²² = 75103657 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (79297901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39648980 + 39648981.

It is an arithmetic number, because the mean of its divisors is an integer number (39648981).

Almost surely, 2^79297961 is an apocalyptic number.

It is an amenable number.

79297961 is a deficient number, since it is larger than the sum of its proper divisors (1).

79297961 is an equidigital number, since it uses as much as digits as its factorization.

79297961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 428652, while the sum is 50.

The square root of 79297961 is about 8904.9402580815. The cubic root of 79297961 is about 429.6228186963.

The spelling of 79297961 in words is "seventy-nine million, two hundred ninety-seven thousand, nine hundred sixty-one".