8004636 has 48 divisors (see below), whose sum is σ = 20942880. Its totient is φ = 2643840.

The previous prime is 8004631. The next prime is 8004649. The reversal of 8004636 is 6364008.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8004631) 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, 14526 + ... + 15066.

It is an arithmetic number, because the mean of its divisors is an integer number (436310).

Almost surely, 2^8004636 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 8004636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10471440).

8004636 is an abundant number, since it is smaller than the sum of its proper divisors (12938244).

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

8004636 is a wasteful number, since it uses less digits than its factorization.

8004636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 8004636 is about 2829.2465428096. The cubic root of 8004636 is about 200.0386258731.

The spelling of 8004636 in words is "eight million, four thousand, six hundred thirty-six".