864329 has 4 divisors (see below), whose sum is σ = 909840. Its totient is φ = 818820.

The previous prime is 864323. The next prime is 864341. The reversal of 864329 is 923468.

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 a de Polignac number, because none of the positive numbers 2^k-864329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 864295 and 864304.

It is not an unprimeable number, because it can be changed into a prime (864323) 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, 22727 + ... + 22764.

It is an arithmetic number, because the mean of its divisors is an integer number (227460).

2⁸⁶⁴³²⁹ is an apocalyptic number.

It is an amenable number.

864329 is a deficient number, since it is larger than the sum of its proper divisors (45511).

864329 is a wasteful number, since it uses less digits than its factorization.

864329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45510.

The product of its digits is 10368, while the sum is 32.

The square root of 864329 is about 929.6929600680. The cubic root of 864329 is about 95.2561508188.

The spelling of 864329 in words is "eight hundred sixty-four thousand, three hundred twenty-nine".