996831 has 12 divisors (see below), whose sum is σ = 1570920. Its totient is φ = 604080.

The previous prime is 996811. The next prime is 996841. The reversal of 996831 is 138699.

It is not a de Polignac number, because 996831 - 2⁷ = 996703 is a prime.

It is a super-2 number, since 2×996831² = 1987344085122, which contains 22 as substring.

It is an Ulam number.

996831 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4936 + ... + 5133.

It is an arithmetic number, because the mean of its divisors is an integer number (130910).

2⁹⁹⁶⁸³¹ is an apocalyptic number.

996831 is a deficient number, since it is larger than the sum of its proper divisors (574089).

996831 is a wasteful number, since it uses less digits than its factorization.

996831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10086 (or 10083 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 996831 is about 998.4142426869. The cubic root of 996831 is about 99.8942548858.

It can be divided in two parts, 9968 and 31, that added together give a palindrome (9999).

The spelling of 996831 in words is "nine hundred ninety-six thousand, eight hundred thirty-one".