573961 has 4 divisors (see below), whose sum is σ = 580500. Its totient is φ = 567424.

The previous prime is 573953. The next prime is 573967. The reversal of 573961 is 169375.

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 366025 + 207936 = 605^2 + 456^2 .

It is a cyclic number.

It is not a de Polignac number, because 573961 - 2³ = 573953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (573967) 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, 3136 + ... + 3313.

It is an arithmetic number, because the mean of its divisors is an integer number (145125).

2⁵⁷³⁹⁶¹ is an apocalyptic number.

It is an amenable number.

573961 is a deficient number, since it is larger than the sum of its proper divisors (6539).

573961 is an equidigital number, since it uses as much as digits as its factorization.

573961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6538.

The product of its digits is 5670, while the sum is 31.

The square root of 573961 is about 757.6021383286. The cubic root of 573961 is about 83.1050588155.

The spelling of 573961 in words is "five hundred seventy-three thousand, nine hundred sixty-one".