16389667 has 12 divisors (see below), whose sum is σ = 19428336. Its totient is φ = 13781040.

The previous prime is 16389643. The next prime is 16389673. The reversal of 16389667 is 76698361.

16389667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16389667 - 2⁷ = 16389539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16389167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 559 + ... + 5752.

It is an arithmetic number, because the mean of its divisors is an integer number (1619028).

Almost surely, 2^16389667 is an apocalyptic number.

16389667 is a deficient number, since it is larger than the sum of its proper divisors (3038669).

16389667 is an equidigital number, since it uses as much as digits as its factorization.

16389667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6378 (or 6371 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 16389667 is about 4048.4153690055. The cubic root of 16389667 is about 254.0134481482.

The spelling of 16389667 in words is "sixteen million, three hundred eighty-nine thousand, six hundred sixty-seven".