636036 has 12 divisors (see below), whose sum is σ = 1484112. Its totient is φ = 212008.

The previous prime is 636023. The next prime is 636043. The reversal of 636036 is 630636.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 635997 and 636015.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 636036.

It is an unprimeable number.

636036 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 3 ways as a sum of consecutive naturals, for example, 26490 + ... + 26513.

It is an arithmetic number, because the mean of its divisors is an integer number (123676).

2⁶³⁶⁰³⁶ is an apocalyptic number.

It is an amenable number.

636036 is an abundant number, since it is smaller than the sum of its proper divisors (848076).

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

636036 is a wasteful number, since it uses less digits than its factorization.

636036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53010 (or 53008 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 636036 is about 797.5186518195. The cubic root of 636036 is about 85.9990986024. Note that the first 3 decimals are identical.

The spelling of 636036 in words is "six hundred thirty-six thousand, thirty-six".