16087812 has 48 divisors (see below), whose sum is σ = 40680192. Its totient is φ = 4919040.

The previous prime is 16087811. The next prime is 16087829. The reversal of 16087812 is 21878061.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16087811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43653 + ... + 44019.

It is an arithmetic number, because the mean of its divisors is an integer number (847504).

Almost surely, 2^16087812 is an apocalyptic number.

16087812 is a gapful number since it is divisible by the number (12) 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 16087812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20340096).

16087812 is an abundant number, since it is smaller than the sum of its proper divisors (24592380).

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

16087812 is a wasteful number, since it uses less digits than its factorization.

16087812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 16087812 is about 4010.9614807425. The cubic root of 16087812 is about 252.4443533224. Note that the first 3 decimals are identical.

The spelling of 16087812 in words is "sixteen million, eighty-seven thousand, eight hundred twelve".