16383439 has 2 divisors, whose sum is σ = 16383440. Its totient is φ = 16383438.

The previous prime is 16383431. The next prime is 16383449. The reversal of 16383439 is 93438361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16383439 - 2³ = 16383431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16383398 and 16383407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16383431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8191719 + 8191720.

It is an arithmetic number, because the mean of its divisors is an integer number (8191720).

Almost surely, 2^16383439 is an apocalyptic number.

16383439 is a deficient number, since it is larger than the sum of its proper divisors (1).

16383439 is an equidigital number, since it uses as much as digits as its factorization.

16383439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 37.

The square root of 16383439 is about 4047.6461060720. The cubic root of 16383439 is about 253.9812694147.

The spelling of 16383439 in words is "sixteen million, three hundred eighty-three thousand, four hundred thirty-nine".