868312 has 16 divisors (see below), whose sum is σ = 1638000. Its totient is φ = 431520.

The previous prime is 868291. The next prime is 868313. The reversal of 868312 is 213868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2314 + ... + 2662.

It is an arithmetic number, because the mean of its divisors is an integer number (102375).

2⁸⁶⁸³¹² is an apocalyptic number.

It is an amenable number.

868312 is a deficient number, since it is larger than the sum of its proper divisors (769688).

868312 is a wasteful number, since it uses less digits than its factorization.

868312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 662 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 868312 is about 931.8326029926. The cubic root of 868312 is about 95.4022464007.

It can be divided in two parts, 8683 and 12, that multiplied together give a triangular number (104196 = T₄₅₆).

The spelling of 868312 in words is "eight hundred sixty-eight thousand, three hundred twelve".