36635634 has 72 divisors (see below), whose sum is σ = 93766140. Its totient is φ = 10305792.

The previous prime is 36635611. The next prime is 36635647. The reversal of 36635634 is 43653663.

It is a happy number.

36635634 is a `hidden beast` number, since 36 + 63 + 563 + 4 = 666.

36635634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 35820225 + 815409 = 5985^2 + 903^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 64102 + ... + 64670.

Almost surely, 2^36635634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36635634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46883070).

36635634 is an abundant number, since it is smaller than the sum of its proper divisors (57130506).

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

36635634 is a wasteful number, since it uses less digits than its factorization.

36635634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664 (or 654 counting only the distinct ones).

The product of its digits is 116640, while the sum is 36.

The square root of 36635634 is about 6052.7377276733. The cubic root of 36635634 is about 332.1247474790.

The spelling of 36635634 in words is "thirty-six million, six hundred thirty-five thousand, six hundred thirty-four".