572645 has 8 divisors (see below), whose sum is σ = 727704. Its totient is φ = 431104.

The previous prime is 572639. The next prime is 572651. The reversal of 572645 is 546275.

It is an interprime number because it is at equal distance from previous prime (572639) and next prime (572651).

It can be written as a sum of positive squares in 4 ways, for example, as 119716 + 452929 = 346^2 + 673^2 .

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 572645 - 2⁴ = 572629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 3284 + ... + 3453.

It is an arithmetic number, because the mean of its divisors is an integer number (90963).

2⁵⁷²⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

572645 is a deficient number, since it is larger than the sum of its proper divisors (155059).

572645 is a wasteful number, since it uses less digits than its factorization.

572645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6759.

The product of its digits is 8400, while the sum is 29.

The square root of 572645 is about 756.7331101518. The cubic root of 572645 is about 83.0414947113.

The spelling of 572645 in words is "five hundred seventy-two thousand, six hundred forty-five".