2243697 has 8 divisors (see below), whose sum is σ = 3061344. Its totient is φ = 1460928.

The previous prime is 2243693. The next prime is 2243699. The reversal of 2243697 is 7963422.

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

It is not a de Polignac number, because 2243697 - 2² = 2243693 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2⁵ + 2¹⁹ + 4⁷ + 3⁸ + 6⁸ + 9 + 7⁵ .

It is not an unprimeable number, because it can be changed into a prime (2243693) 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, 8568 + ... + 8825.

It is an arithmetic number, because the mean of its divisors is an integer number (382668).

2^2243697 is an apocalyptic number.

It is an amenable number.

2243697 is a deficient number, since it is larger than the sum of its proper divisors (817647).

2243697 is a wasteful number, since it uses less digits than its factorization.

2243697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17439.

The product of its digits is 18144, while the sum is 33.

The square root of 2243697 is about 1497.8975265351. The cubic root of 2243697 is about 130.9145957719.

The spelling of 2243697 in words is "two million, two hundred forty-three thousand, six hundred ninety-seven".