16730889 has 8 divisors (see below), whose sum is σ = 25494720. Its totient is φ = 9560496.

The previous prime is 16730863. The next prime is 16730899. The reversal of 16730889 is 98803761.

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

It is not a de Polignac number, because 16730889 - 2⁷ = 16730761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16730889.

It is not an unprimeable number, because it can be changed into a prime (16730899) 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, 398334 + ... + 398375.

It is an arithmetic number, because the mean of its divisors is an integer number (3186840).

Almost surely, 2^16730889 is an apocalyptic number.

It is an amenable number.

16730889 is a deficient number, since it is larger than the sum of its proper divisors (8763831).

16730889 is an equidigital number, since it uses as much as digits as its factorization.

16730889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796719.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 16730889 is about 4090.3409393350. The cubic root of 16730889 is about 255.7641514765.

The spelling of 16730889 in words is "sixteen million, seven hundred thirty thousand, eight hundred eighty-nine".