490637263 has 2 divisors, whose sum is σ = 490637264. Its totient is φ = 490637262.

The previous prime is 490637233. The next prime is 490637281. The reversal of 490637263 is 362736094.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 490637263 - 2²¹ = 488540111 is a prime.

It is equal to p_25888180 and since 490637263 and 25888180 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490637233) 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, 245318631 + 245318632.

It is an arithmetic number, because the mean of its divisors is an integer number (245318632).

Almost surely, 2^490637263 is an apocalyptic number.

490637263 is a deficient number, since it is larger than the sum of its proper divisors (1).

490637263 is an equidigital number, since it uses as much as digits as its factorization.

490637263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 40.

The square root of 490637263 is about 22150.3332480575. Note that the first 3 decimals coincide. The cubic root of 490637263 is about 788.7151378291.

The spelling of 490637263 in words is "four hundred ninety million, six hundred thirty-seven thousand, two hundred sixty-three".