11957634 has 48 divisors (see below), whose sum is σ = 28180152. Its totient is φ = 3642624.

The previous prime is 11957633. The next prime is 11957641. The reversal of 11957634 is 43675911.

11957634 is a `hidden beast` number, since 1 + 19 + 5 + 7 + 634 = 666.

11957634 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 4 ways, for example, as 8982009 + 2975625 = 2997^2 + 1725^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (11957633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31872 + ... + 32244.

Almost surely, 2^11957634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11957634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14090076).

11957634 is an abundant number, since it is smaller than the sum of its proper divisors (16222518).

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

11957634 is a wasteful number, since it uses less digits than its factorization.

11957634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 528 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 11957634 is about 3457.9812029564. The cubic root of 11957634 is about 228.6731032404.

The spelling of 11957634 in words is "eleven million, nine hundred fifty-seven thousand, six hundred thirty-four".