16874487 has 20 divisors (see below), whose sum is σ = 28809616. Its totient is φ = 9642240.

The previous prime is 16874483. The next prime is 16874513. The reversal of 16874487 is 78447861.

16874487 is a `hidden beast` number, since 168 + 7 + 4 + 487 = 666.

It is not a de Polignac number, because 16874487 - 2² = 16874483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16874483) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14314 + ... + 15447.

Almost surely, 2^16874487 is an apocalyptic number.

16874487 is a deficient number, since it is larger than the sum of its proper divisors (11935129).

16874487 is an equidigital number, since it uses as much as digits as its factorization.

16874487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29780 (or 29771 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 16874487 is about 4107.8567404426. The cubic root of 16874487 is about 256.4937928117.

It can be divided in two parts, 16 and 874487, that added together give a triangular number (874503 = T₁₃₂₂).

The spelling of 16874487 in words is "sixteen million, eight hundred seventy-four thousand, four hundred eighty-seven".