16803872 has 24 divisors (see below), whose sum is σ = 33332796. Its totient is φ = 8338432.

The previous prime is 16803827. The next prime is 16803881. The reversal of 16803872 is 27830861.

It can be written as a sum of positive squares in 2 ways, for example, as 16613776 + 190096 = 4076^2 + 436^2 .

It is a super-2 number, since 2×16803872² = 564740228384768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2468 + ... + 6300.

Almost surely, 2^16803872 is an apocalyptic number.

It is an amenable number.

16803872 is a deficient number, since it is larger than the sum of its proper divisors (16528924).

16803872 is a wasteful number, since it uses less digits than its factorization.

16803872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980 (or 3972 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 16803872 is about 4099.2526148068. The cubic root of 16803872 is about 256.1355076866.

The spelling of 16803872 in words is "sixteen million, eight hundred three thousand, eight hundred seventy-two".