16887497 has 8 divisors (see below), whose sum is σ = 19224000. Its totient is φ = 14684560.

The previous prime is 16887491. The next prime is 16887509. The reversal of 16887497 is 79478861.

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

It is not a de Polignac number, because 16887497 - 2¹² = 16883401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16887491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33122 + ... + 33627.

It is an arithmetic number, because the mean of its divisors is an integer number (2403000).

Almost surely, 2^16887497 is an apocalyptic number.

It is an amenable number.

16887497 is a deficient number, since it is larger than the sum of its proper divisors (2336503).

16887497 is a wasteful number, since it uses less digits than its factorization.

16887497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66783.

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

The square root of 16887497 is about 4109.4399861782. The cubic root of 16887497 is about 256.5596936205.

The spelling of 16887497 in words is "sixteen million, eight hundred eighty-seven thousand, four hundred ninety-seven".