536644 has 6 divisors (see below), whose sum is σ = 939134. Its totient is φ = 268320.

The previous prime is 536633. The next prime is 536651. The reversal of 536644 is 446635.

It can be written as a sum of positive squares in only one way, i.e., 407044 + 129600 = 638^2 + 360^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67077 + ... + 67084.

2⁵³⁶⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

536644 is a deficient number, since it is larger than the sum of its proper divisors (402490).

536644 is a wasteful number, since it uses less digits than its factorization.

536644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134165 (or 134163 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 536644 is about 732.5598951622. The cubic root of 536644 is about 81.2634817865.

Subtracting from 536644 its reverse (446635), we obtain a palindrome (90009).

The spelling of 536644 in words is "five hundred thirty-six thousand, six hundred forty-four".