7730228 has 12 divisors (see below), whose sum is σ = 14757792. Its totient is φ = 3513720.

The previous prime is 7730213. The next prime is 7730243. The reversal of 7730228 is 8220377.

It is an interprime number because it is at equal distance from previous prime (7730213) and next prime (7730243).

It is a self number, because there is not a number n which added to its sum of digits gives 7730228.

It is a congruent number.

It is an unprimeable number.

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, 87800 + ... + 87887.

It is an arithmetic number, because the mean of its divisors is an integer number (1229816).

Almost surely, 2^7730228 is an apocalyptic number.

It is an amenable number.

7730228 is a deficient number, since it is larger than the sum of its proper divisors (7027564).

7730228 is a wasteful number, since it uses less digits than its factorization.

7730228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175702 (or 175700 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 7730228 is about 2780.3287575393. The cubic root of 7730228 is about 197.7261459109.

The spelling of 7730228 in words is "seven million, seven hundred thirty thousand, two hundred twenty-eight".