490651277 has 2 divisors, whose sum is σ = 490651278. Its totient is φ = 490651276.

The previous prime is 490651267. The next prime is 490651279. The reversal of 490651277 is 772156094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251825161 + 238826116 = 15869^2 + 15454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490651277 is a prime.

Together with 490651279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490651279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245325638 + 245325639.

It is an arithmetic number, because the mean of its divisors is an integer number (245325639).

Almost surely, 2^490651277 is an apocalyptic number.

It is an amenable number.

490651277 is a deficient number, since it is larger than the sum of its proper divisors (1).

490651277 is an equidigital number, since it uses as much as digits as its factorization.

490651277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 490651277 is about 22150.6495841544. The cubic root of 490651277 is about 788.7226470757.

The spelling of 490651277 in words is "four hundred ninety million, six hundred fifty-one thousand, two hundred seventy-seven".