79686241 has 2 divisors, whose sum is σ = 79686242. Its totient is φ = 79686240.

The previous prime is 79686227. The next prime is 79686281. The reversal of 79686241 is 14268697.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61230625 + 18455616 = 7825^2 + 4296^2 .

It is a cyclic number.

It is not a de Polignac number, because 79686241 - 2⁹ = 79685729 is a prime.

It is not a weakly prime, because it can be changed into another prime (79686281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39843120 + 39843121.

It is an arithmetic number, because the mean of its divisors is an integer number (39843121).

Almost surely, 2^79686241 is an apocalyptic number.

It is an amenable number.

79686241 is a deficient number, since it is larger than the sum of its proper divisors (1).

79686241 is an equidigital number, since it uses as much as digits as its factorization.

79686241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 79686241 is about 8926.7150172950. The cubic root of 79686241 is about 430.3228889030.

The spelling of 79686241 in words is "seventy-nine million, six hundred eighty-six thousand, two hundred forty-one".