16682089 has 4 divisors (see below), whose sum is σ = 16917120. Its totient is φ = 16447060.

The previous prime is 16682063. The next prime is 16682093. The reversal of 16682089 is 98028661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16682089 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16682059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117409 + ... + 117550.

It is an arithmetic number, because the mean of its divisors is an integer number (4229280).

Almost surely, 2^16682089 is an apocalyptic number.

It is an amenable number.

16682089 is a deficient number, since it is larger than the sum of its proper divisors (235031).

16682089 is an equidigital number, since it uses as much as digits as its factorization.

16682089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235030.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 16682089 is about 4084.3713102508. The cubic root of 16682089 is about 255.5152417050.

The spelling of 16682089 in words is "sixteen million, six hundred eighty-two thousand, eighty-nine".