16389673 has 2 divisors, whose sum is σ = 16389674. Its totient is φ = 16389672.

The previous prime is 16389643. The next prime is 16389679. The reversal of 16389673 is 37698361.

16389673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8369449 + 8020224 = 2893^2 + 2832^2 .

It is a cyclic number.

It is not a de Polignac number, because 16389673 - 2⁵ = 16389641 is a prime.

It is not a weakly prime, because it can be changed into another prime (16389679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8194836 + 8194837.

It is an arithmetic number, because the mean of its divisors is an integer number (8194837).

Almost surely, 2^16389673 is an apocalyptic number.

It is an amenable number.

16389673 is a deficient number, since it is larger than the sum of its proper divisors (1).

16389673 is an equidigital number, since it uses as much as digits as its factorization.

16389673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 16389673 is about 4048.4161100361. The cubic root of 16389673 is about 254.0134791450.

It can be divided in two parts, 1638 and 9673, that added together give a palindrome (11311).

The spelling of 16389673 in words is "sixteen million, three hundred eighty-nine thousand, six hundred seventy-three".