16887043 has 4 divisors (see below), whose sum is σ = 17042080. Its totient is φ = 16732008.

The previous prime is 16887041. The next prime is 16887047. The reversal of 16887043 is 34078861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34078861 = 181 ⋅188281.

It is a cyclic number.

It is not a de Polignac number, because 16887043 - 2¹ = 16887041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16886993 and 16887011.

It is not an unprimeable number, because it can be changed into a prime (16887041) 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, 77355 + ... + 77572.

It is an arithmetic number, because the mean of its divisors is an integer number (4260520).

Almost surely, 2^16887043 is an apocalyptic number.

16887043 is a deficient number, since it is larger than the sum of its proper divisors (155037).

16887043 is a wasteful number, since it uses less digits than its factorization.

16887043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155036.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 16887043 is about 4109.3847471367. The cubic root of 16887043 is about 256.5573945005.

The spelling of 16887043 in words is "sixteen million, eight hundred eighty-seven thousand, forty-three".