16889855 has 8 divisors (see below), whose sum is σ = 20328000. Its totient is φ = 13471776.

The previous prime is 16889849. The next prime is 16889867. The reversal of 16889855 is 55898861.

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 16889855 - 2⁴ = 16889839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3095 + ... + 6584.

It is an arithmetic number, because the mean of its divisors is an integer number (2541000).

Almost surely, 2^16889855 is an apocalyptic number.

16889855 is a deficient number, since it is larger than the sum of its proper divisors (3438145).

16889855 is an equidigital number, since it uses as much as digits as its factorization.

16889855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10033.

The product of its digits is 691200, while the sum is 50.

The square root of 16889855 is about 4109.7268765698. The cubic root of 16889855 is about 256.5716342020.

The spelling of 16889855 in words is "sixteen million, eight hundred eighty-nine thousand, eight hundred fifty-five".