8816820 has 48 divisors (see below), whose sum is σ = 25764480. Its totient is φ = 2248576.

The previous prime is 8816809. The next prime is 8816827. The reversal of 8816820 is 286188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8816827) 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, 1815 + ... + 4574.

It is an arithmetic number, because the mean of its divisors is an integer number (536760).

Almost surely, 2^8816820 is an apocalyptic number.

It is an amenable number.

8816820 is an abundant number, since it is smaller than the sum of its proper divisors (16947660).

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

8816820 is a wasteful number, since it uses less digits than its factorization.

8816820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6424 (or 6422 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 8816820 is about 2969.3130518691. The cubic root of 8816820 is about 206.5874768865.

It can be divided in two parts, 88168 and 20, that added together give a palindrome (88188).

The spelling of 8816820 in words is "eight million, eight hundred sixteen thousand, eight hundred twenty".