16887968 has 12 divisors (see below), whose sum is σ = 33248250. Its totient is φ = 8443968.

The previous prime is 16887967. The next prime is 16887971. The reversal of 16887968 is 86978861.

It can be written as a sum of positive squares in only one way, i.e., 14961424 + 1926544 = 3868^2 + 1388^2 .

It is not an unprimeable number, because it can be changed into a prime (16887961) by changing a digit.

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 as a sum of consecutive naturals, namely, 263843 + ... + 263906.

Almost surely, 2^16887968 is an apocalyptic number.

It is an amenable number.

16887968 is a deficient number, since it is larger than the sum of its proper divisors (16360282).

16887968 is an equidigital number, since it uses as much as digits as its factorization.

16887968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527759 (or 527751 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 53.

The square root of 16887968 is about 4109.4972928571. The cubic root of 16887968 is about 256.5620787873.

The spelling of 16887968 in words is "sixteen million, eight hundred eighty-seven thousand, nine hundred sixty-eight".