16985115 has 36 divisors (see below), whose sum is σ = 34251984. Its totient is φ = 7763616.

The previous prime is 16985113. The next prime is 16985141. The reversal of 16985115 is 51158961.

It is not a de Polignac number, because 16985115 - 2¹ = 16985113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16985115.

It is not an unprimeable number, because it can be changed into a prime (16985113) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1647 + ... + 6056.

It is an arithmetic number, because the mean of its divisors is an integer number (951444).

Almost surely, 2^16985115 is an apocalyptic number.

16985115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16985115 is an abundant number, since it is smaller than the sum of its proper divisors (17266869).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16985115 is a wasteful number, since it uses less digits than its factorization.

16985115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7728 (or 7718 counting only the distinct ones).

The product of its digits is 10800, while the sum is 36.

The square root of 16985115 is about 4121.3001589304. The cubic root of 16985115 is about 257.0530910216.

The spelling of 16985115 in words is "sixteen million, nine hundred eighty-five thousand, one hundred fifteen".