490894589 has 4 divisors (see below), whose sum is σ = 512237856. Its totient is φ = 469551324.

The previous prime is 490894561. The next prime is 490894609. The reversal of 490894589 is 985498094.

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 a cyclic number.

It is not a de Polignac number, because 490894589 - 2⁸ = 490894333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490891589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10671599 + ... + 10671644.

It is an arithmetic number, because the mean of its divisors is an integer number (128059464).

Almost surely, 2^490894589 is an apocalyptic number.

It is an amenable number.

490894589 is a deficient number, since it is larger than the sum of its proper divisors (21343267).

490894589 is a wasteful number, since it uses less digits than its factorization.

490894589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21343266.

The product of its (nonzero) digits is 3732480, while the sum is 56.

The square root of 490894589 is about 22156.1411125674. The cubic root of 490894589 is about 788.8530003298.

The spelling of 490894589 in words is "four hundred ninety million, eight hundred ninety-four thousand, five hundred eighty-nine".