326696189 has 2 divisors, whose sum is σ = 326696190. Its totient is φ = 326696188.

The previous prime is 326696177. The next prime is 326696207. The reversal of 326696189 is 981696623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260273689 + 66422500 = 16133^2 + 8150^2 .

It is a cyclic number.

It is not a de Polignac number, because 326696189 - 2²⁰ = 325647613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326696129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163348094 + 163348095.

It is an arithmetic number, because the mean of its divisors is an integer number (163348095).

Almost surely, 2^326696189 is an apocalyptic number.

It is an amenable number.

326696189 is a deficient number, since it is larger than the sum of its proper divisors (1).

326696189 is an equidigital number, since it uses as much as digits as its factorization.

326696189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 50.

The square root of 326696189 is about 18074.7389746021. The cubic root of 326696189 is about 688.7284493418.

The spelling of 326696189 in words is "three hundred twenty-six million, six hundred ninety-six thousand, one hundred eighty-nine".