16994039 has 2 divisors, whose sum is σ = 16994040. Its totient is φ = 16994038.

The previous prime is 16994027. The next prime is 16994041. The reversal of 16994039 is 93049961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16994039 - 2⁸ = 16993783 is a prime.

It is a Sophie Germain prime.

Together with 16994041, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16993987 and 16994005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16994009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8497019 + 8497020.

It is an arithmetic number, because the mean of its divisors is an integer number (8497020).

Almost surely, 2^16994039 is an apocalyptic number.

16994039 is a deficient number, since it is larger than the sum of its proper divisors (1).

16994039 is an equidigital number, since it uses as much as digits as its factorization.

16994039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 16994039 is about 4122.3826848074. The cubic root of 16994039 is about 257.0981018081.

The spelling of 16994039 in words is "sixteen million, nine hundred ninety-four thousand, thirty-nine".