864313 has 4 divisors (see below), whose sum is σ = 866788. Its totient is φ = 861840.

The previous prime is 864307. The next prime is 864319. The reversal of 864313 is 313468.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (864307) and next prime (864319).

It can be written as a sum of positive squares in 2 ways, for example, as 153664 + 710649 = 392^2 + 843^2 .

It is a cyclic number.

It is not a de Polignac number, because 864313 - 2⁹ = 863801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606 + ... + 1447.

It is an arithmetic number, because the mean of its divisors is an integer number (216697).

2⁸⁶⁴³¹³ is an apocalyptic number.

It is an amenable number.

864313 is a deficient number, since it is larger than the sum of its proper divisors (2475).

864313 is a wasteful number, since it uses less digits than its factorization.

864313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474.

The product of its digits is 1728, while the sum is 25.

The square root of 864313 is about 929.6843550367. The cubic root of 864313 is about 95.2555630381.

The spelling of 864313 in words is "eight hundred sixty-four thousand, three hundred thirteen".