16807889 has 4 divisors (see below), whose sum is σ = 19209024. Its totient is φ = 14406756.

The previous prime is 16807873. The next prime is 16807897. The reversal of 16807889 is 98870861.

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 not a de Polignac number, because 16807889 - 2⁴ = 16807873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16807829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200557 + ... + 1200570.

It is an arithmetic number, because the mean of its divisors is an integer number (4802256).

Almost surely, 2^16807889 is an apocalyptic number.

It is an amenable number.

16807889 is a deficient number, since it is larger than the sum of its proper divisors (2401135).

16807889 is an equidigital number, since it uses as much as digits as its factorization.

16807889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401134.

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 16807889 is about 4099.7425528928. The cubic root of 16807889 is about 256.1559159662.

The spelling of 16807889 in words is "sixteen million, eight hundred seven thousand, eight hundred eighty-nine".