866313 has 12 divisors (see below), whose sum is σ = 1430208. Its totient is φ = 495000.

The previous prime is 866311. The next prime is 866329. The reversal of 866313 is 313668.

It is not a de Polignac number, because 866313 - 2¹ = 866311 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (866311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6813 + ... + 6938.

It is an arithmetic number, because the mean of its divisors is an integer number (119184).

2⁸⁶⁶³¹³ is an apocalyptic number.

It is an amenable number.

866313 is a deficient number, since it is larger than the sum of its proper divisors (563895).

866313 is a wasteful number, since it uses less digits than its factorization.

866313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13764 (or 13761 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 866313 is about 930.7593673985. The cubic root of 866313 is about 95.3289794850.

The spelling of 866313 in words is "eight hundred sixty-six thousand, three hundred thirteen".