653085968 has 10 divisors (see below), whose sum is σ = 1265354094. Its totient is φ = 326542976.

The previous prime is 653085967. The next prime is 653085971. The reversal of 653085968 is 869580356.

It can be written as a sum of positive squares in only one way, i.e., 618417424 + 34668544 = 24868^2 + 5888^2 .

It is not an unprimeable number, because it can be changed into a prime (653085967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20408921 + ... + 20408952.

Almost surely, 2^653085968 is an apocalyptic number.

It is an amenable number.

653085968 is a deficient number, since it is larger than the sum of its proper divisors (612268126).

653085968 is a wasteful number, since it uses less digits than its factorization.

653085968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40817881 (or 40817875 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 50.

The square root of 653085968 is about 25555.5467169067. The cubic root of 653085968 is about 867.6078062834.

The spelling of 653085968 in words is "six hundred fifty-three million, eighty-five thousand, nine hundred sixty-eight".