536865 has 16 divisors (see below), whose sum is σ = 981888. Its totient is φ = 245376.

The previous prime is 536857. The next prime is 536867. The reversal of 536865 is 568635.

It is not a de Polignac number, because 536865 - 2³ = 536857 is a prime.

It is an Ulam number.

536865 is a lucky number.

It is a nialpdrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 536865.

It is not an unprimeable number, because it can be changed into a prime (536867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2452 + ... + 2661.

It is an arithmetic number, because the mean of its divisors is an integer number (61368).

2⁵³⁶⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

536865 is a deficient number, since it is larger than the sum of its proper divisors (445023).

536865 is a wasteful number, since it uses less digits than its factorization.

536865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5128.

The product of its digits is 21600, while the sum is 33.

The square root of 536865 is about 732.7107205439. The cubic root of 536865 is about 81.2746355276.

The spelling of 536865 in words is "five hundred thirty-six thousand, eight hundred sixty-five".