983653568 has 42 divisors (see below), whose sum is σ = 1975392036. Its totient is φ = 485944704.

The previous prime is 983653549. The next prime is 983653571. The reversal of 983653568 is 865356389.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2595203 + ... + 2595581.

Almost surely, 2^983653568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 983653568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (987696018).

983653568 is an abundant number, since it is smaller than the sum of its proper divisors (991738468).

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

983653568 is an equidigital number, since it uses as much as digits as its factorization.

983653568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 488 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 53.

The square root of 983653568 is about 31363.2518722150. The cubic root of 983653568 is about 994.5212272006.

The spelling of 983653568 in words is "nine hundred eighty-three million, six hundred fifty-three thousand, five hundred sixty-eight".