864203 has 2 divisors, whose sum is σ = 864204. Its totient is φ = 864202.

The previous prime is 864191. The next prime is 864211. The reversal of 864203 is 302468.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 864203 - 2¹⁰ = 863179 is a prime.

It is not a weakly prime, because it can be changed into another prime (864223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432101 + 432102.

It is an arithmetic number, because the mean of its divisors is an integer number (432102).

2⁸⁶⁴²⁰³ is an apocalyptic number.

864203 is a deficient number, since it is larger than the sum of its proper divisors (1).

864203 is an equidigital number, since it uses as much as digits as its factorization.

864203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 864203 is about 929.6251932903. The cubic root of 864203 is about 95.2515218491.

The spelling of 864203 in words is "eight hundred sixty-four thousand, two hundred three".