508326491 has 2 divisors, whose sum is σ = 508326492. Its totient is φ = 508326490.

The previous prime is 508326449. The next prime is 508326541. The reversal of 508326491 is 194623805.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 508326491 - 2²⁶ = 441217627 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (508326431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254163245 + 254163246.

It is an arithmetic number, because the mean of its divisors is an integer number (254163246).

Almost surely, 2^508326491 is an apocalyptic number.

508326491 is a deficient number, since it is larger than the sum of its proper divisors (1).

508326491 is an equidigital number, since it uses as much as digits as its factorization.

508326491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 508326491 is about 22546.0970236536. The cubic root of 508326491 is about 798.0821199066.

The spelling of 508326491 in words is "five hundred eight million, three hundred twenty-six thousand, four hundred ninety-one".