500641 has 4 divisors (see below), whose sum is σ = 522432. Its totient is φ = 478852.

The previous prime is 500629. The next prime is 500671. The reversal of 500641 is 146005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146005 = 5 ⋅29201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500641 is a prime.

It is a Duffinian number.

500641 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (500671) 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, 10861 + ... + 10906.

It is an arithmetic number, because the mean of its divisors is an integer number (130608).

2⁵⁰⁰⁶⁴¹ is an apocalyptic number.

500641 is the 448-th centered pentagonal number.

It is an amenable number.

500641 is a deficient number, since it is larger than the sum of its proper divisors (21791).

500641 is a wasteful number, since it uses less digits than its factorization.

500641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21790.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 500641 is about 707.5598914580. The cubic root of 500641 is about 79.4039555838.

Adding to 500641 its reverse (146005), we get a palindrome (646646).

The spelling of 500641 in words is "five hundred thousand, six hundred forty-one".