16887479 has 8 divisors (see below), whose sum is σ = 19477920. Its totient is φ = 14341536.

The previous prime is 16887473. The next prime is 16887487. The reversal of 16887479 is 97478861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16887479 - 2⁴ = 16887463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16887473) 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 7 ways as a sum of consecutive naturals, for example, 10304 + ... + 11829.

It is an arithmetic number, because the mean of its divisors is an integer number (2434740).

Almost surely, 2^16887479 is an apocalyptic number.

16887479 is a deficient number, since it is larger than the sum of its proper divisors (2590441).

16887479 is a wasteful number, since it uses less digits than its factorization.

16887479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22249.

The product of its digits is 677376, while the sum is 50.

The square root of 16887479 is about 4109.4377960981. The cubic root of 16887479 is about 256.5596024667.

The spelling of 16887479 in words is "sixteen million, eight hundred eighty-seven thousand, four hundred seventy-nine".