656062728 has 16 divisors (see below), whose sum is σ = 1640156880. Its totient is φ = 218687568.

The previous prime is 656062721. The next prime is 656062733. The reversal of 656062728 is 827260656.

It is a self number, because there is not a number n which added to its sum of digits gives 656062728.

It is not an unprimeable number, because it can be changed into a prime (656062721) by changing a digit.

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, 13667950 + ... + 13667997.

It is an arithmetic number, because the mean of its divisors is an integer number (102509805).

Almost surely, 2^656062728 is an apocalyptic number.

It is an amenable number.

656062728 is an abundant number, since it is smaller than the sum of its proper divisors (984094152).

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

656062728 is a wasteful number, since it uses less digits than its factorization.

656062728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27335956 (or 27335952 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 656062728 is about 25613.7214789261. The cubic root of 656062728 is about 868.9239914575.

The spelling of 656062728 in words is "six hundred fifty-six million, sixty-two thousand, seven hundred twenty-eight".