16394863 has 2 divisors, whose sum is σ = 16394864. Its totient is φ = 16394862.

The previous prime is 16394839. The next prime is 16394879. The reversal of 16394863 is 36849361.

It is a strong prime.

It is an emirp because it is prime and its reverse (36849361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16394863 - 2⁹ = 16394351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16394813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8197431 + 8197432.

It is an arithmetic number, because the mean of its divisors is an integer number (8197432).

Almost surely, 2^16394863 is an apocalyptic number.

16394863 is a deficient number, since it is larger than the sum of its proper divisors (1).

16394863 is an equidigital number, since it uses as much as digits as its factorization.

16394863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The square root of 16394863 is about 4049.0570507218. The cubic root of 16394863 is about 254.0402885232.

The spelling of 16394863 in words is "sixteen million, three hundred ninety-four thousand, eight hundred sixty-three".