869087 has 4 divisors (see below), whose sum is σ = 871416. Its totient is φ = 866760.

The previous prime is 869081. The next prime is 869119. The reversal of 869087 is 780968.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 869087 - 2¹⁸ = 606943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 869087.

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 869087.

It is not an unprimeable number, because it can be changed into a prime (869081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464 + ... + 1397.

It is an arithmetic number, because the mean of its divisors is an integer number (217854).

2⁸⁶⁹⁰⁸⁷ is an apocalyptic number.

869087 is a deficient number, since it is larger than the sum of its proper divisors (2329).

869087 is a wasteful number, since it uses less digits than its factorization.

869087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 869087 is about 932.2483574670. The cubic root of 869087 is about 95.4306212839.

The spelling of 869087 in words is "eight hundred sixty-nine thousand, eighty-seven".