16324987 has 12 divisors (see below), whose sum is σ = 19058976. Its totient is φ = 13942320.

The previous prime is 16324969. The next prime is 16324991. The reversal of 16324987 is 78942361.

It is not a de Polignac number, because 16324987 - 2¹⁹ = 15800699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16324927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20733 + ... + 21505.

It is an arithmetic number, because the mean of its divisors is an integer number (1588248).

Almost surely, 2^16324987 is an apocalyptic number.

16324987 is a deficient number, since it is larger than the sum of its proper divisors (2733989).

16324987 is an equidigital number, since it uses as much as digits as its factorization.

16324987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218 (or 1211 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 16324987 is about 4040.4191614237. The cubic root of 16324987 is about 253.6788623417.

The spelling of 16324987 in words is "sixteen million, three hundred twenty-four thousand, nine hundred eighty-seven".