323043997 has 2 divisors, whose sum is σ = 323043998. Its totient is φ = 323043996.

The previous prime is 323043991. The next prime is 323044049. The reversal of 323043997 is 799340323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312193561 + 10850436 = 17669^2 + 3294^2 .

It is a cyclic number.

It is not a de Polignac number, because 323043997 - 2³ = 323043989 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323043991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161521998 + 161521999.

It is an arithmetic number, because the mean of its divisors is an integer number (161521999).

Almost surely, 2^323043997 is an apocalyptic number.

It is an amenable number.

323043997 is a deficient number, since it is larger than the sum of its proper divisors (1).

323043997 is an equidigital number, since it uses as much as digits as its factorization.

323043997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 40.

The square root of 323043997 is about 17973.4247432146. The cubic root of 323043997 is about 686.1523551879.

The spelling of 323043997 in words is "three hundred twenty-three million, forty-three thousand, nine hundred ninety-seven".