16808886 has 48 divisors (see below), whose sum is σ = 38913264. Its totient is φ = 5225472.

The previous prime is 16808881. The next prime is 16808921. The reversal of 16808886 is 68880861.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16808881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49710 + ... + 50046.

It is an arithmetic number, because the mean of its divisors is an integer number (810693).

Almost surely, 2^16808886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16808886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19456632).

16808886 is an abundant number, since it is smaller than the sum of its proper divisors (22104378).

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

16808886 is a wasteful number, since it uses less digits than its factorization.

16808886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The square root of 16808886 is about 4099.8641440906. The cubic root of 16808886 is about 256.1609806990.

The spelling of 16808886 in words is "sixteen million, eight hundred eight thousand, eight hundred eighty-six".