326331869 has 2 divisors, whose sum is σ = 326331870. Its totient is φ = 326331868.

The previous prime is 326331839. The next prime is 326331871. The reversal of 326331869 is 968133623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202009369 + 124322500 = 14213^2 + 11150^2 .

It is a cyclic number.

It is not a de Polignac number, because 326331869 - 2²⁴ = 309554653 is a prime.

It is a super-2 number, since 2×326331869² = 212984977450066322, which contains 22 as substring.

Together with 326331871, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326331839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163165934 + 163165935.

It is an arithmetic number, because the mean of its divisors is an integer number (163165935).

Almost surely, 2^326331869 is an apocalyptic number.

It is an amenable number.

326331869 is a deficient number, since it is larger than the sum of its proper divisors (1).

326331869 is an equidigital number, since it uses as much as digits as its factorization.

326331869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 41.

The square root of 326331869 is about 18064.6580094947. The cubic root of 326331869 is about 688.4723389387.

The spelling of 326331869 in words is "three hundred twenty-six million, three hundred thirty-one thousand, eight hundred sixty-nine".