490634913 has 4 divisors (see below), whose sum is σ = 654179888. Its totient is φ = 327089940.

The previous prime is 490634897. The next prime is 490634933. The reversal of 490634913 is 319436094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 490634913 - 2⁴ = 490634897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490634933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81772483 + ... + 81772488.

It is an arithmetic number, because the mean of its divisors is an integer number (163544972).

Almost surely, 2^490634913 is an apocalyptic number.

It is an amenable number.

490634913 is a deficient number, since it is larger than the sum of its proper divisors (163544975).

490634913 is a wasteful number, since it uses less digits than its factorization.

490634913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163544974.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 490634913 is about 22150.2802013880. The cubic root of 490634913 is about 788.7138785936.

The spelling of 490634913 in words is "four hundred ninety million, six hundred thirty-four thousand, nine hundred thirteen".