16343399 has 2 divisors, whose sum is σ = 16343400. Its totient is φ = 16343398.

The previous prime is 16343389. The next prime is 16343407. The reversal of 16343399 is 99334361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16343399 - 2⁸ = 16343143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16343309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8171699 + 8171700.

It is an arithmetic number, because the mean of its divisors is an integer number (8171700).

Almost surely, 2^16343399 is an apocalyptic number.

16343399 is a deficient number, since it is larger than the sum of its proper divisors (1).

16343399 is an equidigital number, since it uses as much as digits as its factorization.

16343399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 38.

The square root of 16343399 is about 4042.6969958185. The cubic root of 16343399 is about 253.7741963710.

The spelling of 16343399 in words is "sixteen million, three hundred forty-three thousand, three hundred ninety-nine".