7225643 has 8 divisors (see below), whose sum is σ = 7693200. Its totient is φ = 6766848.

The previous prime is 7225607. The next prime is 7225651. The reversal of 7225643 is 3465227.

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

It is not a de Polignac number, because 7225643 - 2⁶ = 7225579 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7225943) 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, 446 + ... + 3827.

It is an arithmetic number, because the mean of its divisors is an integer number (961650).

Almost surely, 2^7225643 is an apocalyptic number.

7225643 is a deficient number, since it is larger than the sum of its proper divisors (467557).

7225643 is a wasteful number, since it uses less digits than its factorization.

7225643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4381.

The product of its digits is 10080, while the sum is 29.

The square root of 7225643 is about 2688.0556169841. The cubic root of 7225643 is about 193.3268464596.

The spelling of 7225643 in words is "seven million, two hundred twenty-five thousand, six hundred forty-three".