1982317975 has 24 divisors (see below), whose sum is σ = 2822676480. Its totient is φ = 1365804000.

The previous prime is 1982317969. The next prime is 1982317991. The reversal of 1982317975 is 5797132891.

It is not a de Polignac number, because 1982317975 - 2²³ = 1973929367 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184471 + ... + 194920.

It is an arithmetic number, because the mean of its divisors is an integer number (117611520).

Almost surely, 2^1982317975 is an apocalyptic number.

1982317975 is a deficient number, since it is larger than the sum of its proper divisors (840358505).

1982317975 is a wasteful number, since it uses less digits than its factorization.

1982317975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379431 (or 379426 counting only the distinct ones).

The product of its digits is 952560, while the sum is 52.

The square root of 1982317975 is about 44523.2296110693. The cubic root of 1982317975 is about 1256.1970610432.

The spelling of 1982317975 in words is "one billion, nine hundred eighty-two million, three hundred seventeen thousand, nine hundred seventy-five".