16394839 has 2 divisors, whose sum is σ = 16394840. Its totient is φ = 16394838.

The previous prime is 16394827. The next prime is 16394863. The reversal of 16394839 is 93849361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16394839 - 2⁹ = 16394327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16394795 and 16394804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16394879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8197419 + 8197420.

It is an arithmetic number, because the mean of its divisors is an integer number (8197420).

Almost surely, 2^16394839 is an apocalyptic number.

16394839 is a deficient number, since it is larger than the sum of its proper divisors (1).

16394839 is an equidigital number, since it uses as much as digits as its factorization.

16394839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The square root of 16394839 is about 4049.0540870677. The cubic root of 16394839 is about 254.0401645622.

The spelling of 16394839 in words is "sixteen million, three hundred ninety-four thousand, eight hundred thirty-nine".