655704728 has 16 divisors (see below), whose sum is σ = 1405081680. Its totient is φ = 281016288.

The previous prime is 655704727. The next prime is 655704737. The reversal of 655704728 is 827407556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655704727) 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, 5854451 + ... + 5854562.

It is an arithmetic number, because the mean of its divisors is an integer number (87817605).

Almost surely, 2^655704728 is an apocalyptic number.

It is an amenable number.

655704728 is an abundant number, since it is smaller than the sum of its proper divisors (749376952).

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

655704728 is a wasteful number, since it uses less digits than its factorization.

655704728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11709026 (or 11709022 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 44.

The square root of 655704728 is about 25606.7320835752. The cubic root of 655704728 is about 868.7659113557.

The spelling of 655704728 in words is "six hundred fifty-five million, seven hundred four thousand, seven hundred twenty-eight".