17968972 has 12 divisors (see below), whose sum is σ = 35938000. Its totient is φ = 7700976.

The previous prime is 17968967. The next prime is 17968999. The reversal of 17968972 is 27986971.

It is a happy number.

17968972 is an admirable 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 in 3 ways as a sum of consecutive naturals, for example, 320847 + ... + 320902.

Almost surely, 2^17968972 is an apocalyptic number.

It is an amenable number.

17968972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

17968972 is a wasteful number, since it uses less digits than its factorization.

17968972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641760 (or 641758 counting only the distinct ones).

The product of its digits is 381024, while the sum is 49.

The square root of 17968972 is about 4238.9824250638. The cubic root of 17968972 is about 261.9234669532.

The spelling of 17968972 in words is "seventeen million, nine hundred sixty-eight thousand, nine hundred seventy-two".