490590979 has 2 divisors, whose sum is σ = 490590980. Its totient is φ = 490590978.

The previous prime is 490590977. The next prime is 490591007. The reversal of 490590979 is 979095094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490590979 - 2¹ = 490590977 is a prime.

Together with 490590977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (490590973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245295489 + 245295490.

It is an arithmetic number, because the mean of its divisors is an integer number (245295490).

Almost surely, 2^490590979 is an apocalyptic number.

490590979 is a deficient number, since it is larger than the sum of its proper divisors (1).

490590979 is an equidigital number, since it uses as much as digits as its factorization.

490590979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 918540, while the sum is 52.

The square root of 490590979 is about 22149.2884535824. The cubic root of 490590979 is about 788.6903360443.

The spelling of 490590979 in words is "four hundred ninety million, five hundred ninety thousand, nine hundred seventy-nine".