246390491 has 2 divisors, whose sum is σ = 246390492. Its totient is φ = 246390490.

The previous prime is 246390479. The next prime is 246390509. The reversal of 246390491 is 194093642.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-246390491 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 (246390451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123195245 + 123195246.

It is an arithmetic number, because the mean of its divisors is an integer number (123195246).

Almost surely, 2^246390491 is an apocalyptic number.

246390491 is a deficient number, since it is larger than the sum of its proper divisors (1).

246390491 is an equidigital number, since it uses as much as digits as its factorization.

246390491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 246390491 is about 15696.8306036601. The cubic root of 246390491 is about 626.9140181252.

The spelling of 246390491 in words is "two hundred forty-six million, three hundred ninety thousand, four hundred ninety-one".