490695913 has 4 divisors (see below), whose sum is σ = 502664148. Its totient is φ = 478727680.

The previous prime is 490695911. The next prime is 490695929. The reversal of 490695913 is 319596094.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 319596094 = 2 ⋅159798047.

It can be written as a sum of positive squares in 2 ways, for example, as 15586704 + 475109209 = 3948^2 + 21797^2 .

It is a cyclic number.

It is not a de Polignac number, because 490695913 - 2¹ = 490695911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490695911) 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 in 3 ways as a sum of consecutive naturals, for example, 5984056 + ... + 5984137.

It is an arithmetic number, because the mean of its divisors is an integer number (125666037).

Almost surely, 2^490695913 is an apocalyptic number.

It is an amenable number.

490695913 is a deficient number, since it is larger than the sum of its proper divisors (11968235).

490695913 is a wasteful number, since it uses less digits than its factorization.

490695913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11968234.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 490695913 is about 22151.6571163423. The cubic root of 490695913 is about 788.7465638290.

The spelling of 490695913 in words is "four hundred ninety million, six hundred ninety-five thousand, nine hundred thirteen".