16985541 has 8 divisors (see below), whose sum is σ = 22666464. Its totient is φ = 11314160.

The previous prime is 16985539. The next prime is 16985587. The reversal of 16985541 is 14558961.

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 16985541 - 2¹ = 16985539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16985541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16985531) 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, 5446 + ... + 7976.

It is an arithmetic number, because the mean of its divisors is an integer number (2833308).

Almost surely, 2^16985541 is an apocalyptic number.

It is an amenable number.

16985541 is a deficient number, since it is larger than the sum of its proper divisors (5680923).

16985541 is a wasteful number, since it uses less digits than its factorization.

16985541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771.

The product of its digits is 43200, while the sum is 39.

The square root of 16985541 is about 4121.3518413259. The cubic root of 16985541 is about 257.0552400347.

The spelling of 16985541 in words is "sixteen million, nine hundred eighty-five thousand, five hundred forty-one".