617528648 has 32 divisors (see below), whose sum is σ = 1265124960. Its totient is φ = 280250880.

The previous prime is 617528647. The next prime is 617528657. The reversal of 617528648 is 846825716.

617528648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×617528648² = 762683262201415808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (617528647) 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, 54011 + ... + 64437.

It is an arithmetic number, because the mean of its divisors is an integer number (39535155).

Almost surely, 2^617528648 is an apocalyptic number.

It is an amenable number.

617528648 is an abundant number, since it is smaller than the sum of its proper divisors (647596312).

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

617528648 is a wasteful number, since it uses less digits than its factorization.

617528648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11117 (or 11113 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The square root of 617528648 is about 24850.1237019054. The cubic root of 617528648 is about 851.5674183660.

The spelling of 617528648 in words is "six hundred seventeen million, five hundred twenty-eight thousand, six hundred forty-eight".