16387199 has 2 divisors, whose sum is σ = 16387200. Its totient is φ = 16387198.

The previous prime is 16387187. The next prime is 16387213. The reversal of 16387199 is 99178361.

It is a weak prime.

It is an emirp because it is prime and its reverse (99178361) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16387199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16389199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8193599 + 8193600.

It is an arithmetic number, because the mean of its divisors is an integer number (8193600).

Almost surely, 2^16387199 is an apocalyptic number.

16387199 is a deficient number, since it is larger than the sum of its proper divisors (1).

16387199 is an equidigital number, since it uses as much as digits as its factorization.

16387199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 44.

The square root of 16387199 is about 4048.1105469095. The cubic root of 16387199 is about 254.0006974995. Note that the first 3 decimals are identical.

The spelling of 16387199 in words is "sixteen million, three hundred eighty-seven thousand, one hundred ninety-nine".