8806644 has 120 divisors (see below), whose sum is σ = 28784448. Its totient is φ = 2280960.

The previous prime is 8806613. The next prime is 8806657. The reversal of 8806644 is 4466088.

8806644 is a `hidden beast` number, since 8 + 8 + 0 + 6 + 644 = 666.

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 a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 8806599 and 8806608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24772 + ... + 25124.

Almost surely, 2^8806644 is an apocalyptic number.

8806644 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8806644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14392224).

8806644 is an abundant number, since it is smaller than the sum of its proper divisors (19977804).

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

8806644 is a wasteful number, since it uses less digits than its factorization.

8806644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 8806644 is about 2967.5990295186. The cubic root of 8806644 is about 206.5079681198.

The spelling of 8806644 in words is "eight million, eight hundred six thousand, six hundred forty-four".