869967 has 16 divisors (see below), whose sum is σ = 1473280. Its totient is φ = 497016.

The previous prime is 869959. The next prime is 869983. The reversal of 869967 is 769968.

It is not a de Polignac number, because 869967 - 2³ = 869959 is a prime.

It is an Ulam number.

It is a Duffinian number.

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 869967.

It is not an unprimeable number, because it can be changed into a prime (869927) 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 15 ways as a sum of consecutive naturals, for example, 2113 + ... + 2490.

It is an arithmetic number, because the mean of its divisors is an integer number (92080).

2⁸⁶⁹⁹⁶⁷ is an apocalyptic number.

869967 is a deficient number, since it is larger than the sum of its proper divisors (603313).

869967 is a wasteful number, since it uses less digits than its factorization.

869967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4619 (or 4613 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 869967 is about 932.7202152843. The cubic root of 869967 is about 95.4628200619.

Subtracting from 869967 its reverse (769968), we obtain a palindrome (99999).

The spelling of 869967 in words is "eight hundred sixty-nine thousand, nine hundred sixty-seven".