940831 has 4 divisors (see below), whose sum is σ = 996192. Its totient is φ = 885472.

The previous prime is 940829. The next prime is 940853. The reversal of 940831 is 138049.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138049 = 127 ⋅1087.

It is a cyclic number.

It is not a de Polignac number, because 940831 - 2¹ = 940829 is a prime.

It is a super-2 number, since 2×940831² = 1770325941122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 940796 and 940805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27655 + ... + 27688.

It is an arithmetic number, because the mean of its divisors is an integer number (249048).

2⁹⁴⁰⁸³¹ is an apocalyptic number.

940831 is a deficient number, since it is larger than the sum of its proper divisors (55361).

940831 is a wasteful number, since it uses less digits than its factorization.

940831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55360.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 940831 is about 969.9644323376. The cubic root of 940831 is about 97.9874688961.

It can be divided in two parts, 940 and 831, that added together give a palindrome (1771).

The spelling of 940831 in words is "nine hundred forty thousand, eight hundred thirty-one".