490079813 has 2 divisors, whose sum is σ = 490079814. Its totient is φ = 490079812.

The previous prime is 490079803. The next prime is 490079819. The reversal of 490079813 is 318970094.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377252929 + 112826884 = 19423^2 + 10622^2 .

It is a cyclic number.

It is not a de Polignac number, because 490079813 - 2⁴ = 490079797 is a prime.

It is a super-2 number, since 2×490079813² = 480356446220229938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490079819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245039906 + 245039907.

It is an arithmetic number, because the mean of its divisors is an integer number (245039907).

Almost surely, 2^490079813 is an apocalyptic number.

It is an amenable number.

490079813 is a deficient number, since it is larger than the sum of its proper divisors (1).

490079813 is an equidigital number, since it uses as much as digits as its factorization.

490079813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 490079813 is about 22137.7463396797. The cubic root of 490079813 is about 788.4163183782.

The spelling of 490079813 in words is "four hundred ninety million, seventy-nine thousand, eight hundred thirteen".