16467985 has 8 divisors (see below), whose sum is σ = 20924136. Its totient is φ = 12399360.

The previous prime is 16467967. The next prime is 16467991. The reversal of 16467985 is 58976461.

It can be written as a sum of positive squares in 4 ways, for example, as 1164241 + 15303744 = 1079^2 + 3912^2 .

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

It is not a de Polignac number, because 16467985 - 2¹⁷ = 16336913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 96786 + ... + 96955.

It is an arithmetic number, because the mean of its divisors is an integer number (2615517).

Almost surely, 2^16467985 is an apocalyptic number.

It is an amenable number.

16467985 is a deficient number, since it is larger than the sum of its proper divisors (4456151).

16467985 is a wasteful number, since it uses less digits than its factorization.

16467985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193763.

The product of its digits is 362880, while the sum is 46.

The square root of 16467985 is about 4058.0765148035. The cubic root of 16467985 is about 254.4174063565.

The spelling of 16467985 in words is "sixteen million, four hundred sixty-seven thousand, nine hundred eighty-five".