6993216 has 140 divisors (see below), whose sum is σ = 22128480. Its totient is φ = 2177280.

The previous prime is 6993187. The next prime is 6993221. The reversal of 6993216 is 6123996.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 98461 + ... + 98531.

Almost surely, 2^6993216 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 6993216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11064240).

6993216 is an abundant number, since it is smaller than the sum of its proper divisors (15135264).

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

6993216 is a wasteful number, since it uses less digits than its factorization.

6993216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 95 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 6993216 is about 2644.4689447978. The cubic root of 6993216 is about 191.2313015168.

The spelling of 6993216 in words is "six million, nine hundred ninety-three thousand, two hundred sixteen".