499813 has 8 divisors (see below), whose sum is σ = 539136. Its totient is φ = 462000.

The previous prime is 499801. The next prime is 499819. The reversal of 499813 is 318994.

499813 is nontrivially palindromic in base 14.

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 499813 - 2⁵ = 499781 is a prime.

It is a Duffinian number.

499813 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363 + ... + 1063.

It is an arithmetic number, because the mean of its divisors is an integer number (67392).

2⁴⁹⁹⁸¹³ is an apocalyptic number.

It is an amenable number.

499813 is a deficient number, since it is larger than the sum of its proper divisors (39323).

499813 is a wasteful number, since it uses less digits than its factorization.

499813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755.

The product of its digits is 7776, while the sum is 34.

The square root of 499813 is about 706.9745398527. The cubic root of 499813 is about 79.3601565647.

The spelling of 499813 in words is "four hundred ninety-nine thousand, eight hundred thirteen".