867031 has 12 divisors (see below), whose sum is σ = 995400. Its totient is φ = 748880.

The previous prime is 867023. The next prime is 867037. The reversal of 867031 is 130768.

867031 = T₂₆₃ + T₂₆₄ + ... + T₂₈₅.

It is not a de Polignac number, because 867031 - 2³ = 867023 is a prime.

It is a super-2 number, since 2×867031² = 1503485509922, which contains 22 as substring.

It is a Duffinian number.

867031 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 866987 and 867005.

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 867031.

It is not an unprimeable number, because it can be changed into a prime (867037) 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 11 ways as a sum of consecutive naturals, for example, 5745 + ... + 5893.

It is an arithmetic number, because the mean of its divisors is an integer number (82950).

2⁸⁶⁷⁰³¹ is an apocalyptic number.

867031 is a deficient number, since it is larger than the sum of its proper divisors (128369).

867031 is a wasteful number, since it uses less digits than its factorization.

867031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 867031 is about 931.1449940799. The cubic root of 867031 is about 95.3553084241.

Adding to 867031 its reverse (130768), we get a palindrome (997799).

It can be divided in two parts, 86 and 7031, that added together give a palindrome (7117).

The spelling of 867031 in words is "eight hundred sixty-seven thousand, thirty-one".