7228663 has 4 divisors (see below), whose sum is σ = 7784728. Its totient is φ = 6672600.

The previous prime is 7228657. The next prime is 7228681. The reversal of 7228663 is 3668227.

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 7228663 - 2⁵ = 7228631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7226663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278013 + ... + 278038.

It is an arithmetic number, because the mean of its divisors is an integer number (1946182).

Almost surely, 2^7228663 is an apocalyptic number.

7228663 is a deficient number, since it is larger than the sum of its proper divisors (556065).

7228663 is a wasteful number, since it uses less digits than its factorization.

7228663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556064.

The product of its digits is 24192, while the sum is 34.

The square root of 7228663 is about 2688.6173026297. The cubic root of 7228663 is about 193.3537767390.

The spelling of 7228663 in words is "seven million, two hundred twenty-eight thousand, six hundred sixty-three".