500387 has 4 divisors (see below), whose sum is σ = 501816. Its totient is φ = 498960.

The previous prime is 500369. The next prime is 500389. The reversal of 500387 is 783005.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 783005 = 5 ⋅156601.

It is a cyclic number.

It is not a de Polignac number, because 500387 - 2¹⁰ = 499363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500389) 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, 212 + ... + 1022.

It is an arithmetic number, because the mean of its divisors is an integer number (125454).

2⁵⁰⁰³⁸⁷ is an apocalyptic number.

500387 is a deficient number, since it is larger than the sum of its proper divisors (1429).

500387 is an equidigital number, since it uses as much as digits as its factorization.

500387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 500387 is about 707.3803785800. The cubic root of 500387 is about 79.3905247911.

The spelling of 500387 in words is "five hundred thousand, three hundred eighty-seven".