16394879 has 2 divisors, whose sum is σ = 16394880. Its totient is φ = 16394878.

The previous prime is 16394863. The next prime is 16394887. The reversal of 16394879 is 97849361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16394879 - 2⁴ = 16394863 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16394839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8197439 + 8197440.

It is an arithmetic number, because the mean of its divisors is an integer number (8197440).

Almost surely, 2^16394879 is an apocalyptic number.

16394879 is a deficient number, since it is larger than the sum of its proper divisors (1).

16394879 is an equidigital number, since it uses as much as digits as its factorization.

16394879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 16394879 is about 4049.0590264900. The cubic root of 16394879 is about 254.0403711638.

The spelling of 16394879 in words is "sixteen million, three hundred ninety-four thousand, eight hundred seventy-nine".