490594831 has 2 divisors, whose sum is σ = 490594832. Its totient is φ = 490594830.

The previous prime is 490594829. The next prime is 490594849. The reversal of 490594831 is 138495094.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490594831 - 2¹ = 490594829 is a prime.

It is a super-2 number, since 2×490594831² = 481366576407837122, which contains 22 as substring.

Together with 490594829, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490594331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245297415 + 245297416.

It is an arithmetic number, because the mean of its divisors is an integer number (245297416).

Almost surely, 2^490594831 is an apocalyptic number.

490594831 is a deficient number, since it is larger than the sum of its proper divisors (1).

490594831 is an equidigital number, since it uses as much as digits as its factorization.

490594831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 490594831 is about 22149.3754088010. The cubic root of 490594831 is about 788.6924002399.

The spelling of 490594831 in words is "four hundred ninety million, five hundred ninety-four thousand, eight hundred thirty-one".