7228243 has 4 divisors (see below), whose sum is σ = 7885368. Its totient is φ = 6571120.

The previous prime is 7228237. The next prime is 7228253. The reversal of 7228243 is 3428227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7228243 - 2⁵ = 7228211 is a prime.

It is an Ulam number.

It is a Duffinian number.

7228243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7228223) 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 3 ways as a sum of consecutive naturals, for example, 328546 + ... + 328567.

It is an arithmetic number, because the mean of its divisors is an integer number (1971342).

Almost surely, 2^7228243 is an apocalyptic number.

7228243 is a deficient number, since it is larger than the sum of its proper divisors (657125).

7228243 is a wasteful number, since it uses less digits than its factorization.

7228243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657124.

The product of its digits is 5376, while the sum is 28.

The square root of 7228243 is about 2688.5391944325. The cubic root of 7228243 is about 193.3500319174.

The spelling of 7228243 in words is "seven million, two hundred twenty-eight thousand, two hundred forty-three".