535631 has 4 divisors (see below), whose sum is σ = 538200. Its totient is φ = 533064.

The previous prime is 535627. The next prime is 535637. The reversal of 535631 is 136535.

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 535631 - 2² = 535627 is a prime.

It is a super-2 number, since 2×535631² = 573801136322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 535597 and 535606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (535637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 941 + ... + 1398.

It is an arithmetic number, because the mean of its divisors is an integer number (134550).

2⁵³⁵⁶³¹ is an apocalyptic number.

535631 is a deficient number, since it is larger than the sum of its proper divisors (2569).

535631 is a wasteful number, since it uses less digits than its factorization.

535631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568.

The product of its digits is 1350, while the sum is 23.

The square root of 535631 is about 731.8681575257. The cubic root of 535631 is about 81.2123170425.

The spelling of 535631 in words is "five hundred thirty-five thousand, six hundred thirty-one".