864349 has 4 divisors (see below), whose sum is σ = 870300. Its totient is φ = 858400.

The previous prime is 864341. The next prime is 864359. The reversal of 864349 is 943468.

864349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 525625 + 338724 = 725^2 + 582^2 .

It is a cyclic number.

It is not a de Polignac number, because 864349 - 2³ = 864341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864341) 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, 2752 + ... + 3049.

It is an arithmetic number, because the mean of its divisors is an integer number (217575).

2⁸⁶⁴³⁴⁹ is an apocalyptic number.

It is an amenable number.

864349 is a deficient number, since it is larger than the sum of its proper divisors (5951).

864349 is a wasteful number, since it uses less digits than its factorization.

864349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5950.

The product of its digits is 20736, while the sum is 34.

The square root of 864349 is about 929.7037162451. The cubic root of 864349 is about 95.2568855345.

The spelling of 864349 in words is "eight hundred sixty-four thousand, three hundred forty-nine".