653648 has 10 divisors (see below), whose sum is σ = 1266474. Its totient is φ = 326816.

The previous prime is 653647. The next prime is 653651. The reversal of 653648 is 846356.

653648 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., 652864 + 784 = 808^2 + 28^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 653648.

It is not an unprimeable number, because it can be changed into a prime (653641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20411 + ... + 20442.

2⁶⁵³⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

653648 is a deficient number, since it is larger than the sum of its proper divisors (612826).

653648 is a wasteful number, since it uses less digits than its factorization.

653648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40861 (or 40855 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 653648 is about 808.4850029531. The cubic root of 653648 is about 86.7856616579.

The spelling of 653648 in words is "six hundred fifty-three thousand, six hundred forty-eight".