490620791 has 2 divisors, whose sum is σ = 490620792. Its totient is φ = 490620790.

The previous prime is 490620749. The next prime is 490620847. The reversal of 490620791 is 197026094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490620791 - 2²⁶ = 423511927 is a prime.

It is a super-2 number, since 2×490620791² = 481417521122931362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490620191) 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, 245310395 + 245310396.

It is an arithmetic number, because the mean of its divisors is an integer number (245310396).

Almost surely, 2^490620791 is an apocalyptic number.

490620791 is a deficient number, since it is larger than the sum of its proper divisors (1).

490620791 is an equidigital number, since it uses as much as digits as its factorization.

490620791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 490620791 is about 22149.9614220883. The cubic root of 490620791 is about 788.7063113075.

The spelling of 490620791 in words is "four hundred ninety million, six hundred twenty thousand, seven hundred ninety-one".