323409197 has 2 divisors, whose sum is σ = 323409198. Its totient is φ = 323409196.

The previous prime is 323409137. The next prime is 323409221. The reversal of 323409197 is 791904323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307616521 + 15792676 = 17539^2 + 3974^2 .

It is a cyclic number.

It is not a de Polignac number, because 323409197 - 2⁶ = 323409133 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 323409197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323409137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161704598 + 161704599.

It is an arithmetic number, because the mean of its divisors is an integer number (161704599).

Almost surely, 2^323409197 is an apocalyptic number.

It is an amenable number.

323409197 is a deficient number, since it is larger than the sum of its proper divisors (1).

323409197 is an equidigital number, since it uses as much as digits as its factorization.

323409197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 323409197 is about 17983.5813174128. The cubic root of 323409197 is about 686.4108220160.

The spelling of 323409197 in words is "three hundred twenty-three million, four hundred nine thousand, one hundred ninety-seven".