864903 has 16 divisors (see below), whose sum is σ = 1264256. Its totient is φ = 522720.

The previous prime is 864901. The next prime is 864911. The reversal of 864903 is 309468.

864903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 864903 - 2¹ = 864901 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 (864901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2448 + ... + 2778.

It is an arithmetic number, because the mean of its divisors is an integer number (79016).

2⁸⁶⁴⁹⁰³ is an apocalyptic number.

864903 is a deficient number, since it is larger than the sum of its proper divisors (399353).

864903 is a wasteful number, since it uses less digits than its factorization.

864903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 864903 is about 930.0016129018. The cubic root of 864903 is about 95.2772326566.

The spelling of 864903 in words is "eight hundred sixty-four thousand, nine hundred three".