326866427 has 2 divisors, whose sum is σ = 326866428. Its totient is φ = 326866426.

The previous prime is 326866381. The next prime is 326866433. The reversal of 326866427 is 724668623.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 326866427 - 2⁸ = 326866171 is a prime.

It is a super-2 number, since 2×326866427² = 213683322199492658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (326866447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163433213 + 163433214.

It is an arithmetic number, because the mean of its divisors is an integer number (163433214).

Almost surely, 2^326866427 is an apocalyptic number.

326866427 is a deficient number, since it is larger than the sum of its proper divisors (1).

326866427 is an equidigital number, since it uses as much as digits as its factorization.

326866427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 44.

The square root of 326866427 is about 18079.4476408988. The cubic root of 326866427 is about 688.8480583221.

The spelling of 326866427 in words is "three hundred twenty-six million, eight hundred sixty-six thousand, four hundred twenty-seven".