16818964 has 6 divisors (see below), whose sum is σ = 29433194. Its totient is φ = 8409480.

The previous prime is 16818961. The next prime is 16818983. The reversal of 16818964 is 46981861.

It can be written as a sum of positive squares in only one way, i.e., 11492100 + 5326864 = 3390^2 + 2308^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16818964.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16818961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2102367 + ... + 2102374.

Almost surely, 2^16818964 is an apocalyptic number.

It is an amenable number.

16818964 is a deficient number, since it is larger than the sum of its proper divisors (12614230).

16818964 is a wasteful number, since it uses less digits than its factorization.

16818964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204745 (or 4204743 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The square root of 16818964 is about 4101.0930250361. The cubic root of 16818964 is about 256.2121654234.

The spelling of 16818964 in words is "sixteen million, eight hundred eighteen thousand, nine hundred sixty-four".