869239 has 8 divisors (see below), whose sum is σ = 1036800. Its totient is φ = 712536.

The previous prime is 869233. The next prime is 869249. The reversal of 869239 is 932968.

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 869239 - 2⁹ = 868727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 869198 and 869207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869233) 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, 2539 + ... + 2860.

It is an arithmetic number, because the mean of its divisors is an integer number (129600).

2⁸⁶⁹²³⁹ is an apocalyptic number.

869239 is a deficient number, since it is larger than the sum of its proper divisors (167561).

869239 is a wasteful number, since it uses less digits than its factorization.

869239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5429.

The product of its digits is 23328, while the sum is 37.

The square root of 869239 is about 932.3298772430. The cubic root of 869239 is about 95.4361844434.

The spelling of 869239 in words is "eight hundred sixty-nine thousand, two hundred thirty-nine".