16389047 has 2 divisors, whose sum is σ = 16389048. Its totient is φ = 16389046.

The previous prime is 16389019. The next prime is 16389059. The reversal of 16389047 is 74098361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16389047 - 2⁸ = 16388791 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16389047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16589047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8194523 + 8194524.

It is an arithmetic number, because the mean of its divisors is an integer number (8194524).

Almost surely, 2^16389047 is an apocalyptic number.

16389047 is a deficient number, since it is larger than the sum of its proper divisors (1).

16389047 is an equidigital number, since it uses as much as digits as its factorization.

16389047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 16389047 is about 4048.3387951109. The cubic root of 16389047 is about 254.0102451072.

The spelling of 16389047 in words is "sixteen million, three hundred eighty-nine thousand, forty-seven".