495831 has 12 divisors (see below), whose sum is σ = 769272. Its totient is φ = 283248.

The previous prime is 495829. The next prime is 495851. The reversal of 495831 is 138594.

It is not a de Polignac number, because 495831 - 2¹ = 495829 is a prime.

It is a super-2 number, since 2×495831² = 491696761122, which contains 22 as substring.

495831 is a lucky number.

It is a plaindrome in base 13.

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 495831.

It is not an unprimeable number, because it can be changed into a prime (495821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1540 + ... + 1833.

It is an arithmetic number, because the mean of its divisors is an integer number (64106).

2⁴⁹⁵⁸³¹ is an apocalyptic number.

495831 is a deficient number, since it is larger than the sum of its proper divisors (273441).

495831 is a wasteful number, since it uses less digits than its factorization.

495831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390 (or 3383 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 495831 is about 704.1526823069. The cubic root of 495831 is about 79.1488408003.

It can be divided in two parts, 495 and 831, that added together give a triangular number (1326 = T₅₁).

The spelling of 495831 in words is "four hundred ninety-five thousand, eight hundred thirty-one".