79634197 has 2 divisors, whose sum is σ = 79634198. Its totient is φ = 79634196.

The previous prime is 79634173. The next prime is 79634209. The reversal of 79634197 is 79143697.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42497361 + 37136836 = 6519^2 + 6094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79634197 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 (79634147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39817098 + 39817099.

It is an arithmetic number, because the mean of its divisors is an integer number (39817099).

Almost surely, 2^79634197 is an apocalyptic number.

It is an amenable number.

79634197 is a deficient number, since it is larger than the sum of its proper divisors (1).

79634197 is an equidigital number, since it uses as much as digits as its factorization.

79634197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 46.

The square root of 79634197 is about 8923.7994710773. The cubic root of 79634197 is about 430.2291855587.

The spelling of 79634197 in words is "seventy-nine million, six hundred thirty-four thousand, one hundred ninety-seven".