536991 has 24 divisors (see below), whose sum is σ = 900144. Its totient is φ = 282240.

The previous prime is 536989. The next prime is 536999. The reversal of 536991 is 199635.

536991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 536991 - 2¹ = 536989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (536999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1771 + ... + 2051.

It is an arithmetic number, because the mean of its divisors is an integer number (37506).

2⁵³⁶⁹⁹¹ is an apocalyptic number.

536991 is a deficient number, since it is larger than the sum of its proper divisors (363153).

536991 is a wasteful number, since it uses less digits than its factorization.

536991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 304 counting only the distinct ones).

The product of its digits is 7290, while the sum is 33.

The square root of 536991 is about 732.7966975908. The cubic root of 536991 is about 81.2809933041.

It can be divided in two parts, 5369 and 91, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 536991 in words is "five hundred thirty-six thousand, nine hundred ninety-one".