2347221 has 8 divisors (see below), whose sum is σ = 3153024. Its totient is φ = 1553120.

The previous prime is 2347217. The next prime is 2347229. The reversal of 2347221 is 1227432.

2347221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2347221 - 2² = 2347217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2347229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2445 + ... + 3266.

It is an arithmetic number, because the mean of its divisors is an integer number (394128).

2^2347221 is an apocalyptic number.

It is an amenable number.

2347221 is a deficient number, since it is larger than the sum of its proper divisors (805803).

2347221 is a wasteful number, since it uses less digits than its factorization.

2347221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5851.

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

The square root of 2347221 is about 1532.0642936901. The cubic root of 2347221 is about 132.8978619222.

The spelling of 2347221 in words is "two million, three hundred forty-seven thousand, two hundred twenty-one".