1983989875 has 16 divisors (see below), whose sum is σ = 2829737664. Its totient is φ = 1360449600.

The previous prime is 1983989807. The next prime is 1983989881. The reversal of 1983989875 is 5789893891.

It is not a de Polignac number, because 1983989875 - 2⁹ = 1983989363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1983989875.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1132834 + ... + 1134583.

It is an arithmetic number, because the mean of its divisors is an integer number (176858604).

Almost surely, 2^1983989875 is an apocalyptic number.

1983989875 is a deficient number, since it is larger than the sum of its proper divisors (845747789).

1983989875 is an equidigital number, since it uses as much as digits as its factorization.

1983989875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267439 (or 2267429 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 67.

The square root of 1983989875 is about 44542.0012460150. The cubic root of 1983989875 is about 1256.5501234207.

The spelling of 1983989875 in words is "one billion, nine hundred eighty-three million, nine hundred eighty-nine thousand, eight hundred seventy-five".