864353 has 4 divisors (see below), whose sum is σ = 987840. Its totient is φ = 740868.

The previous prime is 864341. The next prime is 864359. The reversal of 864353 is 353468.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 864353 - 2⁶ = 864289 is a prime.

It is a super-2 number, since 2×864353² = 1494212217218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (864359) 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, 61733 + ... + 61746.

It is an arithmetic number, because the mean of its divisors is an integer number (246960).

2⁸⁶⁴³⁵³ is an apocalyptic number.

It is an amenable number.

864353 is a deficient number, since it is larger than the sum of its proper divisors (123487).

864353 is a wasteful number, since it uses less digits than its factorization.

864353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123486.

The product of its digits is 8640, while the sum is 29.

The square root of 864353 is about 929.7058674656. The cubic root of 864353 is about 95.2570324763.

The spelling of 864353 in words is "eight hundred sixty-four thousand, three hundred fifty-three".