656298648 has 24 divisors (see below), whose sum is σ = 1777475700. Its totient is φ = 218766192.

The previous prime is 656298641. The next prime is 656298673. The reversal of 656298648 is 846892656.

It is a happy number.

656298648 is a `hidden beast` number, since 6 + 5 + 629 + 8 + 6 + 4 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 656298594 and 656298603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656298641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4557558 + ... + 4557701.

Almost surely, 2^656298648 is an apocalyptic number.

It is an amenable number.

656298648 is an abundant number, since it is smaller than the sum of its proper divisors (1121177052).

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

656298648 is a wasteful number, since it uses less digits than its factorization.

656298648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9115271 (or 9115264 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 656298648 is about 25618.3264090377. The cubic root of 656298648 is about 869.0281339284.

The spelling of 656298648 in words is "six hundred fifty-six million, two hundred ninety-eight thousand, six hundred forty-eight".