79457227 has 2 divisors, whose sum is σ = 79457228. Its totient is φ = 79457226.

The previous prime is 79457207. The next prime is 79457233. The reversal of 79457227 is 72275497.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79457227 is a prime.

It is not a weakly prime, because it can be changed into another prime (79457207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39728613 + 39728614.

It is an arithmetic number, because the mean of its divisors is an integer number (39728614).

Almost surely, 2^79457227 is an apocalyptic number.

79457227 is a deficient number, since it is larger than the sum of its proper divisors (1).

79457227 is an equidigital number, since it uses as much as digits as its factorization.

79457227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 246960, while the sum is 43.

The square root of 79457227 is about 8913.8783366164. The cubic root of 79457227 is about 429.9102516857.

The spelling of 79457227 in words is "seventy-nine million, four hundred fifty-seven thousand, two hundred twenty-seven".