490991927 has 2 divisors, whose sum is σ = 490991928. Its totient is φ = 490991926.

The previous prime is 490991911. The next prime is 490991957. The reversal of 490991927 is 729199094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490991927 - 2⁴ = 490991911 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490991957) 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, 245495963 + 245495964.

It is an arithmetic number, because the mean of its divisors is an integer number (245495964).

Almost surely, 2^490991927 is an apocalyptic number.

490991927 is a deficient number, since it is larger than the sum of its proper divisors (1).

490991927 is an equidigital number, since it uses as much as digits as its factorization.

490991927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 50.

The square root of 490991927 is about 22158.3376407166. The cubic root of 490991927 is about 788.9051366407.

The spelling of 490991927 in words is "four hundred ninety million, nine hundred ninety-one thousand, nine hundred twenty-seven".