79157473 has 2 divisors, whose sum is σ = 79157474. Its totient is φ = 79157472.

The previous prime is 79157431. The next prime is 79157479. The reversal of 79157473 is 37475197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63728289 + 15429184 = 7983^2 + 3928^2 .

It is a cyclic number.

It is not a de Polignac number, because 79157473 - 2¹⁷ = 79026401 is a prime.

It is not a weakly prime, because it can be changed into another prime (79157479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39578736 + 39578737.

It is an arithmetic number, because the mean of its divisors is an integer number (39578737).

Almost surely, 2^79157473 is an apocalyptic number.

It is an amenable number.

79157473 is a deficient number, since it is larger than the sum of its proper divisors (1).

79157473 is an equidigital number, since it uses as much as digits as its factorization.

79157473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 185220, while the sum is 43.

The square root of 79157473 is about 8897.0485555604. The cubic root of 79157473 is about 429.3689553830.

The spelling of 79157473 in words is "seventy-nine million, one hundred fifty-seven thousand, four hundred seventy-three".