869031 has 12 divisors (see below), whose sum is σ = 1263808. Its totient is φ = 575424.

The previous prime is 869021. The next prime is 869039. The reversal of 869031 is 130968.

869031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 869031 - 2⁵ = 868999 is a prime.

It is a super-2 number, since 2×869031² = 1510429757922, which contains 22 as substring.

It is a Duffinian number.

869031 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 868986 and 869004.

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 869031.

It is not an unprimeable number, because it can be changed into a prime (869039) 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, 1791 + ... + 2223.

2⁸⁶⁹⁰³¹ is an apocalyptic number.

869031 is a deficient number, since it is larger than the sum of its proper divisors (394777).

869031 is a wasteful number, since it uses less digits than its factorization.

869031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 869031 is about 932.2183220684. The cubic root of 869031 is about 95.4285715353.

Adding to 869031 its reverse (130968), we get a palindrome (999999).

The spelling of 869031 in words is "eight hundred sixty-nine thousand, thirty-one".