326972413 has 2 divisors, whose sum is σ = 326972414. Its totient is φ = 326972412.

The previous prime is 326972357. The next prime is 326972447. The reversal of 326972413 is 314279623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 326958724 + 13689 = 18082^2 + 117^2 .

It is a cyclic number.

It is not a de Polignac number, because 326972413 - 2⁹ = 326971901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326972453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163486206 + 163486207.

It is an arithmetic number, because the mean of its divisors is an integer number (163486207).

Almost surely, 2^326972413 is an apocalyptic number.

It is an amenable number.

326972413 is a deficient number, since it is larger than the sum of its proper divisors (1).

326972413 is an equidigital number, since it uses as much as digits as its factorization.

326972413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 37.

The square root of 326972413 is about 18082.3785216437. The cubic root of 326972413 is about 688.9225029624.

The spelling of 326972413 in words is "three hundred twenty-six million, nine hundred seventy-two thousand, four hundred thirteen".