108993216 has 28 divisors (see below), whose sum is σ = 288378392. Its totient is φ = 36331008.

The previous prime is 108993191. The next prime is 108993217. The reversal of 108993216 is 612399801.

It is a super-2 number, since 2×108993216² = 23759042268045312, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (108993217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283645 + ... + 284028.

Almost surely, 2^108993216 is an apocalyptic number.

108993216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

108993216 is an abundant number, since it is smaller than the sum of its proper divisors (179385176).

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

108993216 is an equidigital number, since it uses as much as digits as its factorization.

108993216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567688 (or 567678 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 108993216 is about 10439.9816091792. The cubic root of 108993216 is about 477.6757077473.

The spelling of 108993216 in words is "one hundred eight million, nine hundred ninety-three thousand, two hundred sixteen".