773321057 has 2 divisors, whose sum is σ = 773321058. Its totient is φ = 773321056.

The previous prime is 773320997. The next prime is 773321099. The reversal of 773321057 is 750123377.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 460703296 + 312617761 = 21464^2 + 17681^2 .

It is a cyclic number.

It is not a de Polignac number, because 773321057 - 2²⁴ = 756543841 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (773321557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386660528 + 386660529.

It is an arithmetic number, because the mean of its divisors is an integer number (386660529).

Almost surely, 2^773321057 is an apocalyptic number.

It is an amenable number.

773321057 is a deficient number, since it is larger than the sum of its proper divisors (1).

773321057 is an equidigital number, since it uses as much as digits as its factorization.

773321057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30870, while the sum is 35.

The square root of 773321057 is about 27808.6507583522. The cubic root of 773321057 is about 917.8814899947.

The spelling of 773321057 in words is "seven hundred seventy-three million, three hundred twenty-one thousand, fifty-seven".