16863968 has 48 divisors (see below), whose sum is σ = 37812096. Its totient is φ = 7328640.

The previous prime is 16863943. The next prime is 16863989. The reversal of 16863968 is 86936861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7055 + ... + 9137.

It is an arithmetic number, because the mean of its divisors is an integer number (787752).

Almost surely, 2^16863968 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 16863968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18906048).

16863968 is an abundant number, since it is smaller than the sum of its proper divisors (20948128).

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

16863968 is a wasteful number, since it uses less digits than its factorization.

16863968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127 (or 2119 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 16863968 is about 4106.5761894795. The cubic root of 16863968 is about 256.4404851363.

The spelling of 16863968 in words is "sixteen million, eight hundred sixty-three thousand, nine hundred sixty-eight".