16606889 has 8 divisors (see below), whose sum is σ = 18100992. Its totient is φ = 15143760.

The previous prime is 16606871. The next prime is 16606921. The reversal of 16606889 is 98860661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16606889 - 2⁸ = 16606633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16606859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6617 + ... + 8774.

It is an arithmetic number, because the mean of its divisors is an integer number (2262624).

Almost surely, 2^16606889 is an apocalyptic number.

It is an amenable number.

16606889 is a deficient number, since it is larger than the sum of its proper divisors (1494103).

16606889 is a wasteful number, since it uses less digits than its factorization.

16606889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15487.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 16606889 is about 4075.1550890733. The cubic root of 16606889 is about 255.1307236956.

The spelling of 16606889 in words is "sixteen million, six hundred six thousand, eight hundred eighty-nine".