326242643 has 2 divisors, whose sum is σ = 326242644. Its totient is φ = 326242642.

The previous prime is 326242619. The next prime is 326242681. The reversal of 326242643 is 346242623.

It is a weak prime.

It is an emirp because it is prime and its reverse (346242623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 326242643 - 2⁸ = 326242387 is a prime.

It is a super-2 number, since 2×326242643² = 212868524223250898, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (326242843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163121321 + 163121322.

It is an arithmetic number, because the mean of its divisors is an integer number (163121322).

Almost surely, 2^326242643 is an apocalyptic number.

326242643 is a deficient number, since it is larger than the sum of its proper divisors (1).

326242643 is an equidigital number, since it uses as much as digits as its factorization.

326242643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 32.

The square root of 326242643 is about 18062.1882118419. The cubic root of 326242643 is about 688.4095856107.

The spelling of 326242643 in words is "three hundred twenty-six million, two hundred forty-two thousand, six hundred forty-three".