16894689 has 16 divisors (see below), whose sum is σ = 25801728. Its totient is φ = 9632592.

The previous prime is 16894687. The next prime is 16894693. The reversal of 16894689 is 98649861.

It is a happy number.

It is not a de Polignac number, because 16894689 - 2¹ = 16894687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16894687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18174 + ... + 19080.

It is an arithmetic number, because the mean of its divisors is an integer number (1612608).

Almost surely, 2^16894689 is an apocalyptic number.

It is an amenable number.

16894689 is a deficient number, since it is larger than the sum of its proper divisors (8907039).

16894689 is an equidigital number, since it uses as much as digits as its factorization.

16894689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804.

The product of its digits is 746496, while the sum is 51.

The square root of 16894689 is about 4110.3149514362. The cubic root of 16894689 is about 256.5961094264.

The spelling of 16894689 in words is "sixteen million, eight hundred ninety-four thousand, six hundred eighty-nine".