490808677 has 2 divisors, whose sum is σ = 490808678. Its totient is φ = 490808676.

The previous prime is 490808671. The next prime is 490808713. The reversal of 490808677 is 776808094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 480530241 + 10278436 = 21921^2 + 3206^2 .

It is a cyclic number.

It is not a de Polignac number, because 490808677 - 2²³ = 482420069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 490808677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490808671) 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, 245404338 + 245404339.

It is an arithmetic number, because the mean of its divisors is an integer number (245404339).

Almost surely, 2^490808677 is an apocalyptic number.

It is an amenable number.

490808677 is a deficient number, since it is larger than the sum of its proper divisors (1).

490808677 is an equidigital number, since it uses as much as digits as its factorization.

490808677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 490808677 is about 22154.2022424641. The cubic root of 490808677 is about 788.8069783022.

The spelling of 490808677 in words is "four hundred ninety million, eight hundred eight thousand, six hundred seventy-seven".