17989968 has 40 divisors (see below), whose sum is σ = 46845216. Its totient is φ = 5948800.

The previous prime is 17989943. The next prime is 17989981. The reversal of 17989968 is 86998971.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4858 + ... + 7718.

Almost surely, 2^17989968 is an apocalyptic number.

It is an amenable number.

17989968 is an abundant number, since it is smaller than the sum of its proper divisors (28855248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17989968 is a wasteful number, since it uses less digits than its factorization.

17989968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003 (or 2997 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 57.

The square root of 17989968 is about 4241.4582398039. The cubic root of 17989968 is about 262.0254428218.

The spelling of 17989968 in words is "seventeen million, nine hundred eighty-nine thousand, nine hundred sixty-eight".