573491 has 4 divisors (see below), whose sum is σ = 586872. Its totient is φ = 560112.

The previous prime is 573487. The next prime is 573493. The reversal of 573491 is 194375.

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

It is a cyclic number.

It is not a de Polignac number, because 573491 - 2² = 573487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (573493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6626 + ... + 6711.

It is an arithmetic number, because the mean of its divisors is an integer number (146718).

2⁵⁷³⁴⁹¹ is an apocalyptic number.

573491 is a deficient number, since it is larger than the sum of its proper divisors (13381).

573491 is a wasteful number, since it uses less digits than its factorization.

573491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13380.

The product of its digits is 3780, while the sum is 29.

The square root of 573491 is about 757.2918856029. The cubic root of 573491 is about 83.0823685142.

The spelling of 573491 in words is "five hundred seventy-three thousand, four hundred ninety-one".