655747228 has 24 divisors (see below), whose sum is σ = 1217484800. Its totient is φ = 308166768.

The previous prime is 655747223. The next prime is 655747231. The reversal of 655747228 is 822747556.

655747228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655747223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24318 + ... + 43621.

Almost surely, 2^655747228 is an apocalyptic number.

It is an amenable number.

655747228 is a deficient number, since it is larger than the sum of its proper divisors (561737572).

655747228 is a wasteful number, since it uses less digits than its factorization.

655747228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68089 (or 68087 counting only the distinct ones).

The product of its digits is 940800, while the sum is 46.

The square root of 655747228 is about 25607.5619300237. The cubic root of 655747228 is about 868.7846808576.

The spelling of 655747228 in words is "six hundred fifty-five million, seven hundred forty-seven thousand, two hundred twenty-eight".