537645 has 16 divisors (see below), whose sum is σ = 873792. Its totient is φ = 282240.

The previous prime is 537637. The next prime is 537661. The reversal of 537645 is 546735.

It is not a de Polignac number, because 537645 - 2³ = 537637 is a prime.

It is a super-3 number, since 3×537645³ = 466238452498833375, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 850 + ... + 1340.

It is an arithmetic number, because the mean of its divisors is an integer number (54612).

2⁵³⁷⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

537645 is a deficient number, since it is larger than the sum of its proper divisors (336147).

537645 is a wasteful number, since it uses less digits than its factorization.

537645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572.

The product of its digits is 12600, while the sum is 30.

The square root of 537645 is about 733.2427974416. The cubic root of 537645 is about 81.3139772238.

The spelling of 537645 in words is "five hundred thirty-seven thousand, six hundred forty-five".