499756489 has 8 divisors (see below), whose sum is σ = 521753472. Its totient is φ = 477781920.

The previous prime is 499756457. The next prime is 499756519. The reversal of 499756489 is 984657994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 499756489 - 2⁵ = 499756457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499726489) 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 7 ways as a sum of consecutive naturals, for example, 53229 + ... + 61909.

It is an arithmetic number, because the mean of its divisors is an integer number (65219184).

Almost surely, 2^499756489 is an apocalyptic number.

It is an amenable number.

499756489 is a deficient number, since it is larger than the sum of its proper divisors (21996983).

499756489 is a wasteful number, since it uses less digits than its factorization.

499756489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11207.

The product of its digits is 19595520, while the sum is 61.

The square root of 499756489 is about 22355.2340403763. The cubic root of 499756489 is about 793.5716551883.

The spelling of 499756489 in words is "four hundred ninety-nine million, seven hundred fifty-six thousand, four hundred eighty-nine".