868164 has 24 divisors (see below), whose sum is σ = 2210208. Its totient is φ = 263040.

The previous prime is 868157. The next prime is 868171. The reversal of 868164 is 461868.

It is an interprime number because it is at equal distance from previous prime (868157) and next prime (868171).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a plaindrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3157 + ... + 3420.

It is an arithmetic number, because the mean of its divisors is an integer number (92092).

2⁸⁶⁸¹⁶⁴ is an apocalyptic number.

It is an amenable number.

868164 is an abundant number, since it is smaller than the sum of its proper divisors (1342044).

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

868164 is a wasteful number, since it uses less digits than its factorization.

868164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6595 (or 6593 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 868164 is about 931.7531862033. The cubic root of 868164 is about 95.3968257935.

The spelling of 868164 in words is "eight hundred sixty-eight thousand, one hundred sixty-four".