79412197 has 2 divisors, whose sum is σ = 79412198. Its totient is φ = 79412196.

The previous prime is 79412183. The next prime is 79412209. The reversal of 79412197 is 79121497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77986561 + 1425636 = 8831^2 + 1194^2 .

It is a cyclic number.

It is not a de Polignac number, because 79412197 - 2¹⁵ = 79379429 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 (79412107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39706098 + 39706099.

It is an arithmetic number, because the mean of its divisors is an integer number (39706099).

Almost surely, 2^79412197 is an apocalyptic number.

It is an amenable number.

79412197 is a deficient number, since it is larger than the sum of its proper divisors (1).

79412197 is an equidigital number, since it uses as much as digits as its factorization.

79412197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 40.

The square root of 79412197 is about 8911.3521420714. The cubic root of 79412197 is about 429.8290234261.

The spelling of 79412197 in words is "seventy-nine million, four hundred twelve thousand, one hundred ninety-seven".