575981 has 8 divisors (see below), whose sum is σ = 665280. Its totient is φ = 488448.

The previous prime is 575963. The next prime is 575987. The reversal of 575981 is 189575.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 575981 - 2¹⁴ = 559597 is a prime.

It is a super-2 number, since 2×575981² = 663508224722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 575981.

It is not an unprimeable number, because it can be changed into a prime (575987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365 + ... + 1133.

It is an arithmetic number, because the mean of its divisors is an integer number (83160).

2⁵⁷⁵⁹⁸¹ is an apocalyptic number.

It is an amenable number.

575981 is a deficient number, since it is larger than the sum of its proper divisors (89299).

575981 is a wasteful number, since it uses less digits than its factorization.

575981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883.

The product of its digits is 12600, while the sum is 35.

The square root of 575981 is about 758.9341209881. The cubic root of 575981 is about 83.2024380603.

The spelling of 575981 in words is "five hundred seventy-five thousand, nine hundred eighty-one".