500945 has 4 divisors (see below), whose sum is σ = 601140. Its totient is φ = 400752.

The previous prime is 500933. The next prime is 500947. The reversal of 500945 is 549005.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 132496 + 368449 = 364^2 + 607^2 .

It is a cyclic number.

It is not a de Polignac number, because 500945 - 2⁶ = 500881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 500945.

It is not an unprimeable number, because it can be changed into a prime (500947) 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, 50090 + ... + 50099.

It is an arithmetic number, because the mean of its divisors is an integer number (150285).

2⁵⁰⁰⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

500945 is a deficient number, since it is larger than the sum of its proper divisors (100195).

500945 is a wasteful number, since it uses less digits than its factorization.

500945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100194.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 500945 is about 707.7746816608. The cubic root of 500945 is about 79.4200242626.

The spelling of 500945 in words is "five hundred thousand, nine hundred forty-five".