16662873 has 12 divisors (see below), whose sum is σ = 23602160. Its totient is φ = 10454592.

The previous prime is 16662859. The next prime is 16662883. The reversal of 16662873 is 37826661.

It is not a de Polignac number, because 16662873 - 2⁶ = 16662809 is a prime.

It is a super-2 number, since 2×16662873² = 555302673228258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16662803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8743 + ... + 10476.

Almost surely, 2^16662873 is an apocalyptic number.

It is an amenable number.

16662873 is a deficient number, since it is larger than the sum of its proper divisors (6939287).

16662873 is a wasteful number, since it uses less digits than its factorization.

16662873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19256 (or 19239 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 16662873 is about 4082.0182508166. The cubic root of 16662873 is about 255.4170951768.

The spelling of 16662873 in words is "sixteen million, six hundred sixty-two thousand, eight hundred seventy-three".