495839 has 4 divisors (see below), whose sum is σ = 525024. Its totient is φ = 466656.

The previous prime is 495829. The next prime is 495851. The reversal of 495839 is 938594.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 495839 - 2¹⁶ = 430303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 495839.

It is not an unprimeable number, because it can be changed into a prime (495829) 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, 14567 + ... + 14600.

It is an arithmetic number, because the mean of its divisors is an integer number (131256).

2⁴⁹⁵⁸³⁹ is an apocalyptic number.

495839 is a deficient number, since it is larger than the sum of its proper divisors (29185).

495839 is a wasteful number, since it uses less digits than its factorization.

495839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29184.

The product of its digits is 38880, while the sum is 38.

The square root of 495839 is about 704.1583628702. The cubic root of 495839 is about 79.1492664744.

The spelling of 495839 in words is "four hundred ninety-five thousand, eight hundred thirty-nine".