500389 has 2 divisors, whose sum is σ = 500390. Its totient is φ = 500388.

The previous prime is 500369. The next prime is 500393. The reversal of 500389 is 983005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497025 + 3364 = 705^2 + 58^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250194 + 250195.

It is an arithmetic number, because the mean of its divisors is an integer number (250195).

2⁵⁰⁰³⁸⁹ is an apocalyptic number.

It is an amenable number.

500389 is a deficient number, since it is larger than the sum of its proper divisors (1).

500389 is an equidigital number, since it uses as much as digits as its factorization.

500389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 500389 is about 707.3817922452. The cubic root of 500389 is about 79.3906305631.

The spelling of 500389 in words is "five hundred thousand, three hundred eighty-nine".