75636 has 36 divisors (see below), whose sum is σ = 209664. Its totient is φ = 22800.

The previous prime is 75629. The next prime is 75641. The reversal of 75636 is 63657.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

75636 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301 + ... + 491.

It is an arithmetic number, because the mean of its divisors is an integer number (5824).

2⁷⁵⁶³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104832).

75636 is an abundant number, since it is smaller than the sum of its proper divisors (134028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75636 is a wasteful number, since it uses less digits than its factorization.

75636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 207 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 75636 is about 275.0199992728. The cubic root of 75636 is about 42.2905030404.

It can be divided in two parts, 7563 and 6, that added together give a square (7569 = 87²).

The spelling of 75636 in words is "seventy-five thousand, six hundred thirty-six".