322870997 has 2 divisors, whose sum is σ = 322870998. Its totient is φ = 322870996.

The previous prime is 322870963. The next prime is 322871011. The reversal of 322870997 is 799078223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305515441 + 17355556 = 17479^2 + 4166^2 .

It is a cyclic number.

It is not a de Polignac number, because 322870997 - 2⁸ = 322870741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (322870927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161435498 + 161435499.

It is an arithmetic number, because the mean of its divisors is an integer number (161435499).

Almost surely, 2^322870997 is an apocalyptic number.

It is an amenable number.

322870997 is a deficient number, since it is larger than the sum of its proper divisors (1).

322870997 is an equidigital number, since it uses as much as digits as its factorization.

322870997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 322870997 is about 17968.6114377266. The cubic root of 322870997 is about 686.0298480838.

The spelling of 322870997 in words is "three hundred twenty-two million, eight hundred seventy thousand, nine hundred ninety-seven".