499565 has 16 divisors (see below), whose sum is σ = 677376. Its totient is φ = 350400.

The previous prime is 499559. The next prime is 499571. The reversal of 499565 is 565994.

499565 is nontrivially palindromic in base 4.

It is an interprime number because it is at equal distance from previous prime (499559) and next prime (499571).

It is not a de Polignac number, because 499565 - 2⁴ = 499549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1559 + ... + 1851.

It is an arithmetic number, because the mean of its divisors is an integer number (42336).

2⁴⁹⁹⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

499565 is a deficient number, since it is larger than the sum of its proper divisors (177811).

499565 is a wasteful number, since it uses less digits than its factorization.

499565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340.

The product of its digits is 48600, while the sum is 38.

The square root of 499565 is about 706.7991228065. The cubic root of 499565 is about 79.3470286049.

The spelling of 499565 in words is "four hundred ninety-nine thousand, five hundred sixty-five".