499685759 has 4 divisors (see below), whose sum is σ = 499737600. Its totient is φ = 499633920.

The previous prime is 499685729. The next prime is 499685773. The reversal of 499685759 is 957586994.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 499685759 - 2¹⁶ = 499620223 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 (499685729) 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, 6722 + ... + 32319.

It is an arithmetic number, because the mean of its divisors is an integer number (124934400).

Almost surely, 2^499685759 is an apocalyptic number.

499685759 is a deficient number, since it is larger than the sum of its proper divisors (51841).

499685759 is a wasteful number, since it uses less digits than its factorization.

499685759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51840.

The product of its digits is 24494400, while the sum is 62.

The square root of 499685759 is about 22353.6520282481. The cubic root of 499685759 is about 793.5342156402.

The spelling of 499685759 in words is "four hundred ninety-nine million, six hundred eighty-five thousand, seven hundred fifty-nine".