6694224 has 40 divisors (see below), whose sum is σ = 17498880. Its totient is φ = 2204928.

The previous prime is 6694217. The next prime is 6694229. The reversal of 6694224 is 4224966.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6694229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3489 + ... + 5055.

It is an arithmetic number, because the mean of its divisors is an integer number (437472).

Almost surely, 2^6694224 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 6694224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8749440).

6694224 is an abundant number, since it is smaller than the sum of its proper divisors (10804656).

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

6694224 is a wasteful number, since it uses less digits than its factorization.

6694224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667 (or 1661 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 6694224 is about 2587.3198488011. The cubic root of 6694224 is about 188.4661737153.

It can be divided in two parts, 66942 and 24, that added together give a palindrome (66966).

The spelling of 6694224 in words is "six million, six hundred ninety-four thousand, two hundred twenty-four".