16918856 has 8 divisors (see below), whose sum is σ = 31722870. Its totient is φ = 8459424.

The previous prime is 16918849. The next prime is 16918897. The reversal of 16918856 is 65881961.

It can be written as a sum of positive squares in only one way, i.e., 12716356 + 4202500 = 3566^2 + 2050^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1057421 + ... + 1057436.

Almost surely, 2^16918856 is an apocalyptic number.

It is an amenable number.

16918856 is a deficient number, since it is larger than the sum of its proper divisors (14804014).

16918856 is a wasteful number, since it uses less digits than its factorization.

16918856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114863 (or 2114859 counting only the distinct ones).

The product of its digits is 103680, while the sum is 44.

The square root of 16918856 is about 4113.2536999315. The cubic root of 16918856 is about 256.7184003962.

The spelling of 16918856 in words is "sixteen million, nine hundred eighteen thousand, eight hundred fifty-six".