499685739 has 16 divisors (see below), whose sum is σ = 763696128. Its totient is φ = 284683392.

The previous prime is 499685729. The next prime is 499685773. The reversal of 499685739 is 937586994.

It is not a de Polignac number, because 499685739 - 2⁵ = 499685707 is a prime.

It is a super-2 number, since 2×499685739² = 499371675519952242, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 28227 + ... + 42380.

It is an arithmetic number, because the mean of its divisors is an integer number (47731008).

Almost surely, 2^499685739 is an apocalyptic number.

499685739 is a deficient number, since it is larger than the sum of its proper divisors (264010389).

499685739 is a wasteful number, since it uses less digits than its factorization.

499685739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70954.

The product of its digits is 14696640, while the sum is 60.

The square root of 499685739 is about 22353.6515808939. The cubic root of 499685739 is about 793.5342050531.

The spelling of 499685739 in words is "four hundred ninety-nine million, six hundred eighty-five thousand, seven hundred thirty-nine".