16603968 has 56 divisors (see below), whose sum is σ = 46524672. Its totient is φ = 5208064.

The previous prime is 16603949. The next prime is 16603969. The reversal of 16603968 is 86930661.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16603969) 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 7 ways as a sum of consecutive naturals, for example, 721 + ... + 5807.

Almost surely, 2^16603968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16603968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23262336).

16603968 is an abundant number, since it is smaller than the sum of its proper divisors (29920704).

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

16603968 is a wasteful number, since it uses less digits than its factorization.

16603968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5119 (or 5109 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 16603968 is about 4074.7966820444. The cubic root of 16603968 is about 255.1157644310.

It can be divided in two parts, 16603 and 968, that added together give a palindrome (17571).

The spelling of 16603968 in words is "sixteen million, six hundred three thousand, nine hundred sixty-eight".