500961 has 4 divisors (see below), whose sum is σ = 667952. Its totient is φ = 333972.

The previous prime is 500957. The next prime is 500977. The reversal of 500961 is 169005.

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.

It is not a de Polignac number, because 500961 - 2² = 500957 is a prime.

It is a D-number.

It is a Duffinian number.

500961 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (500911) 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, 83491 + ... + 83496.

It is an arithmetic number, because the mean of its divisors is an integer number (166988).

2⁵⁰⁰⁹⁶¹ is an apocalyptic number.

It is an amenable number.

500961 is a deficient number, since it is larger than the sum of its proper divisors (166991).

500961 is a wasteful number, since it uses less digits than its factorization.

500961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166990.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 500961 is about 707.7859846027. The cubic root of 500961 is about 79.4208698024.

Adding to 500961 its reverse (169005), we get a palindrome (669966).

The spelling of 500961 in words is "five hundred thousand, nine hundred sixty-one".