8553816 has 48 divisors (see below), whose sum is σ = 23880600. Its totient is φ = 2836944.

The previous prime is 8553803. The next prime is 8553817. The reversal of 8553816 is 6183558.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8553817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42885 + ... + 43083.

Almost surely, 2^8553816 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 8553816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11940300).

8553816 is an abundant number, since it is smaller than the sum of its proper divisors (15326784).

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

8553816 is a wasteful number, since it uses less digits than its factorization.

8553816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 204 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 8553816 is about 2924.6907528831. The cubic root of 8553816 is about 204.5125519602.

The spelling of 8553816 in words is "eight million, five hundred fifty-three thousand, eight hundred sixteen".