323406857 has 2 divisors, whose sum is σ = 323406858. Its totient is φ = 323406856.

The previous prime is 323406851. The next prime is 323406871. The reversal of 323406857 is 758604323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297079696 + 26327161 = 17236^2 + 5131^2 .

It is a cyclic number.

It is not a de Polignac number, because 323406857 - 2¹⁰ = 323405833 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 323406857.

It is not a weakly prime, because it can be changed into another prime (323406851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161703428 + 161703429.

It is an arithmetic number, because the mean of its divisors is an integer number (161703429).

Almost surely, 2^323406857 is an apocalyptic number.

It is an amenable number.

323406857 is a deficient number, since it is larger than the sum of its proper divisors (1).

323406857 is an equidigital number, since it uses as much as digits as its factorization.

323406857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 323406857 is about 17983.5162579513. The cubic root of 323406857 is about 686.4091665227.

The spelling of 323406857 in words is "three hundred twenty-three million, four hundred six thousand, eight hundred fifty-seven".