499389 has 16 divisors (see below), whose sum is σ = 747840. Its totient is φ = 293760.

The previous prime is 499363. The next prime is 499391. The reversal of 499389 is 983994.

It is not a de Polignac number, because 499389 - 2⁸ = 499133 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 499389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499309) 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, 1017 + ... + 1425.

It is an arithmetic number, because the mean of its divisors is an integer number (46740).

2⁴⁹⁹³⁸⁹ is an apocalyptic number.

It is an amenable number.

499389 is a deficient number, since it is larger than the sum of its proper divisors (248451).

499389 is a wasteful number, since it uses less digits than its factorization.

499389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460.

The product of its digits is 69984, while the sum is 42.

The square root of 499389 is about 706.6746068736. The cubic root of 499389 is about 79.3377093523.

It can be divided in two parts, 499 and 389, that added together give a palindrome (888).

The spelling of 499389 in words is "four hundred ninety-nine thousand, three hundred eighty-nine".