2213247 has 8 divisors (see below), whose sum is σ = 3124656. Its totient is φ = 1388672.

The previous prime is 2213243. The next prime is 2213279. The reversal of 2213247 is 7423122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2213247 - 2² = 2213243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213243) 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, 21648 + ... + 21749.

It is an arithmetic number, because the mean of its divisors is an integer number (390582).

2^2213247 is an apocalyptic number.

2213247 is a deficient number, since it is larger than the sum of its proper divisors (911409).

2213247 is a wasteful number, since it uses less digits than its factorization.

2213247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43417.

The product of its digits is 672, while the sum is 21.

The square root of 2213247 is about 1487.6985581764. The cubic root of 2213247 is about 130.3196669511.

Adding to 2213247 its reverse (7423122), we get a palindrome (9636369).

The spelling of 2213247 in words is "two million, two hundred thirteen thousand, two hundred forty-seven".