655628328 has 24 divisors (see below), whose sum is σ = 1775660250. Its totient is φ = 218542752.

The previous prime is 655628327. The next prime is 655628329. The reversal of 655628328 is 823826556.

655628328 is a `hidden beast` number, since 6 + 5 + 562 + 83 + 2 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (655628327) and next prime (655628329).

It can be written as a sum of positive squares in only one way, i.e., 648109764 + 7518564 = 25458^2 + 2742^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (655628321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4552903 + ... + 4553046.

Almost surely, 2^655628328 is an apocalyptic number.

It is an amenable number.

655628328 is an abundant number, since it is smaller than the sum of its proper divisors (1120031922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655628328 is a wasteful number, since it uses less digits than its factorization.

655628328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9105961 (or 9105954 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 655628328 is about 25605.2402449186. The cubic root of 655628328 is about 868.7321683761.

The spelling of 655628328 in words is "six hundred fifty-five million, six hundred twenty-eight thousand, three hundred twenty-eight".