868087 has 8 divisors (see below), whose sum is σ = 965520. Its totient is φ = 773760.

The previous prime is 868081. The next prime is 868103. The reversal of 868087 is 780868.

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 868087 - 2⁷ = 867959 is a prime.

It is a Duffinian number.

868087 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868081) 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, 162 + ... + 1327.

It is an arithmetic number, because the mean of its divisors is an integer number (120690).

2⁸⁶⁸⁰⁸⁷ is an apocalyptic number.

868087 is a deficient number, since it is larger than the sum of its proper divisors (97433).

868087 is a wasteful number, since it uses less digits than its factorization.

868087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 868087 is about 931.7118653318. The cubic root of 868087 is about 95.3940053691.

The spelling of 868087 in words is "eight hundred sixty-eight thousand, eighty-seven".