573649 has 8 divisors (see below), whose sum is σ = 601920. Its totient is φ = 546000.

The previous prime is 573647. The next prime is 573673. The reversal of 573649 is 946375.

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 573649 - 2¹ = 573647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (573647) 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 7 ways as a sum of consecutive naturals, for example, 3724 + ... + 3874.

It is an arithmetic number, because the mean of its divisors is an integer number (75240).

2⁵⁷³⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

573649 is a deficient number, since it is larger than the sum of its proper divisors (28271).

573649 is a wasteful number, since it uses less digits than its factorization.

573649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311.

The product of its digits is 22680, while the sum is 34.

The square root of 573649 is about 757.3961975083. The cubic root of 573649 is about 83.0899977004.

The spelling of 573649 in words is "five hundred seventy-three thousand, six hundred forty-nine".