16944939 has 12 divisors (see below), whose sum is σ = 26701272. Its totient is φ = 10269600.

The previous prime is 16944923. The next prime is 16944943. The reversal of 16944939 is 93944961.

It is not a de Polignac number, because 16944939 - 2⁴ = 16944923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16944894 and 16944903.

It is not an unprimeable number, because it can be changed into a prime (16944919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85482 + ... + 85679.

It is an arithmetic number, because the mean of its divisors is an integer number (2225106).

Almost surely, 2^16944939 is an apocalyptic number.

16944939 is a deficient number, since it is larger than the sum of its proper divisors (9756333).

16944939 is a wasteful number, since it uses less digits than its factorization.

16944939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171178 (or 171175 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 16944939 is about 4116.4230832119. The cubic root of 16944939 is about 256.8502561990.

The spelling of 16944939 in words is "sixteen million, nine hundred forty-four thousand, nine hundred thirty-nine".