16809088 has 16 divisors (see below), whose sum is σ = 33487110. Its totient is φ = 8404480.

The previous prime is 16809061. The next prime is 16809097. The reversal of 16809088 is 88090861.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16711744 + 97344 = 4088^2 + 312^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 16809088.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65533 + ... + 65788.

Almost surely, 2^16809088 is an apocalyptic number.

It is an amenable number.

16809088 is a deficient number, since it is larger than the sum of its proper divisors (16678022).

16809088 is an equidigital number, since it uses as much as digits as its factorization.

16809088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131335 (or 131323 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 16809088 is about 4099.8887789793. Note that the first 3 decimals coincide. The cubic root of 16809088 is about 256.1620068291.

The spelling of 16809088 in words is "sixteen million, eight hundred nine thousand, eighty-eight".