653509328 has 10 divisors (see below), whose sum is σ = 1266174354. Its totient is φ = 326754656.

The previous prime is 653509319. The next prime is 653509331. The reversal of 653509328 is 823905356.

653509328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 397125184 + 256384144 = 19928^2 + 16012^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20422151 + ... + 20422182.

Almost surely, 2^653509328 is an apocalyptic number.

It is an amenable number.

653509328 is a deficient number, since it is larger than the sum of its proper divisors (612665026).

653509328 is a wasteful number, since it uses less digits than its factorization.

653509328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40844341 (or 40844335 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 653509328 is about 25563.8285082653. The cubic root of 653509328 is about 867.7952400559.

The spelling of 653509328 in words is "six hundred fifty-three million, five hundred nine thousand, three hundred twenty-eight".