868870 has 32 divisors (see below), whose sum is σ = 1749600. Its totient is φ = 308736.

The previous prime is 868867. The next prime is 868873. The reversal of 868870 is 78868.

It is an interprime number because it is at equal distance from previous prime (868867) and next prime (868873).

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3096 + ... + 3364.

It is an arithmetic number, because the mean of its divisors is an integer number (54675).

2⁸⁶⁸⁸⁷⁰ is an apocalyptic number.

868870 is an abundant number, since it is smaller than the sum of its proper divisors (880730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

868870 is a wasteful number, since it uses less digits than its factorization.

868870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312.

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

The square root of 868870 is about 932.1319649063. The cubic root of 868870 is about 95.4226780175.

The spelling of 868870 in words is "eight hundred sixty-eight thousand, eight hundred seventy".