16939984 has 10 divisors (see below), whose sum is σ = 32821250. Its totient is φ = 8469984.

The previous prime is 16939933. The next prime is 16939997. The reversal of 16939984 is 48993961.

It can be written as a sum of positive squares in only one way, i.e., 11370384 + 5569600 = 3372^2 + 2360^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 529359 + ... + 529390.

It is an arithmetic number, because the mean of its divisors is an integer number (3282125).

Almost surely, 2^16939984 is an apocalyptic number.

It is an amenable number.

16939984 is a deficient number, since it is larger than the sum of its proper divisors (15881266).

16939984 is a wasteful number, since it uses less digits than its factorization.

16939984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058757 (or 1058751 counting only the distinct ones).

The product of its digits is 419904, while the sum is 49.

The square root of 16939984 is about 4115.8211817328. The cubic root of 16939984 is about 256.8252179050.

The spelling of 16939984 in words is "sixteen million, nine hundred thirty-nine thousand, nine hundred eighty-four".