8136636 has 48 divisors (see below), whose sum is σ = 20213760. Its totient is φ = 2540160.

The previous prime is 8136629. The next prime is 8136637. The reversal of 8136636 is 6366318.

Its product of digits (15552) is a multiple of the sum of its prime divisors (432).

It is a junction number, because it is equal to n+sod(n) for n = 8136597 and 8136606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8136637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28816 + ... + 29096.

It is an arithmetic number, because the mean of its divisors is an integer number (421120).

Almost surely, 2^8136636 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 8136636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10106880).

8136636 is an abundant number, since it is smaller than the sum of its proper divisors (12077124).

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

8136636 is a wasteful number, since it uses less digits than its factorization.

8136636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 432 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 8136636 is about 2852.4789219204. The cubic root of 8136636 is about 201.1322117215.

The spelling of 8136636 in words is "eight million, one hundred thirty-six thousand, six hundred thirty-six".