79030057 has 2 divisors, whose sum is σ = 79030058. Its totient is φ = 79030056.

The previous prime is 79030031. The next prime is 79030069. The reversal of 79030057 is 75003097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68376361 + 10653696 = 8269^2 + 3264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79030057 is a prime.

It is not a weakly prime, because it can be changed into another prime (79030157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39515028 + 39515029.

It is an arithmetic number, because the mean of its divisors is an integer number (39515029).

Almost surely, 2^79030057 is an apocalyptic number.

It is an amenable number.

79030057 is a deficient number, since it is larger than the sum of its proper divisors (1).

79030057 is an equidigital number, since it uses as much as digits as its factorization.

79030057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6615, while the sum is 31.

The square root of 79030057 is about 8889.8850948705. The cubic root of 79030057 is about 429.1384534359.

The spelling of 79030057 in words is "seventy-nine million, thirty thousand, fifty-seven".