869431 has 8 divisors (see below), whose sum is σ = 928800. Its totient is φ = 811008.

The previous prime is 869419. The next prime is 869437. The reversal of 869431 is 134968.

869431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 869431 - 2⁵ = 869399 is a prime.

It is a super-2 number, since 2×869431² = 1511820527522, 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 = 869393 and 869402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3255 + ... + 3511.

It is an arithmetic number, because the mean of its divisors is an integer number (116100).

2⁸⁶⁹⁴³¹ is an apocalyptic number.

869431 is a deficient number, since it is larger than the sum of its proper divisors (59369).

869431 is a wasteful number, since it uses less digits than its factorization.

869431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its digits is 5184, while the sum is 31.

The square root of 869431 is about 932.4328394045. The cubic root of 869431 is about 95.4432106654.

The spelling of 869431 in words is "eight hundred sixty-nine thousand, four hundred thirty-one".