16873861 has 4 divisors (see below), whose sum is σ = 16884000. Its totient is φ = 16863724.

The previous prime is 16873783. The next prime is 16873867. The reversal of 16873861 is 16837861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16873861 - 2¹³ = 16865669 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16873867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1921 + ... + 6118.

It is an arithmetic number, because the mean of its divisors is an integer number (4221000).

Almost surely, 2^16873861 is an apocalyptic number.

It is an amenable number.

16873861 is a deficient number, since it is larger than the sum of its proper divisors (10139).

16873861 is an equidigital number, since it uses as much as digits as its factorization.

16873861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10138.

The product of its digits is 48384, while the sum is 40.

The square root of 16873861 is about 4107.7805442842. The cubic root of 16873861 is about 256.4906210195.

The spelling of 16873861 in words is "sixteen million, eight hundred seventy-three thousand, eight hundred sixty-one".