536689 has 4 divisors (see below), whose sum is σ = 544320. Its totient is φ = 529060.

The previous prime is 536687. The next prime is 536699. The reversal of 536689 is 986635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 536689 - 2¹ = 536687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (536687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3709 + ... + 3850.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

2⁵³⁶⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

536689 is a deficient number, since it is larger than the sum of its proper divisors (7631).

536689 is an equidigital number, since it uses as much as digits as its factorization.

536689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7630.

The product of its digits is 38880, while the sum is 37.

The square root of 536689 is about 732.5906087304. The cubic root of 536689 is about 81.2657531585.

It can be divided in two parts, 536 and 689, that added together give a triangular number (1225 = T₄₉).

The spelling of 536689 in words is "five hundred thirty-six thousand, six hundred eighty-nine".