16985950 has 24 divisors (see below), whose sum is σ = 31982328. Its totient is φ = 6710880.

The previous prime is 16985911. The next prime is 16985951. The reversal of 16985950 is 5958961.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16985897 and 16985906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16985951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2104 + ... + 6196.

It is an arithmetic number, because the mean of its divisors is an integer number (1332597).

Almost surely, 2^16985950 is an apocalyptic number.

16985950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16985950 is a deficient number, since it is larger than the sum of its proper divisors (14996378).

16985950 is a wasteful number, since it uses less digits than its factorization.

16985950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188 (or 4183 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 16985950 is about 4121.4014606684. The cubic root of 16985950 is about 257.0573032552.

The spelling of 16985950 in words is "sixteen million, nine hundred eighty-five thousand, nine hundred fifty".