1983917673 has 24 divisors (see below), whose sum is σ = 2894082048. Its totient is φ = 1309537152.

The previous prime is 1983917669. The next prime is 1983917759. The reversal of 1983917673 is 3767193891.

1983917673 is a `hidden beast` number, since 198 + 391 + 7 + 67 + 3 = 666.

It is not a de Polignac number, because 1983917673 - 2² = 1983917669 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1983917603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 676336 + ... + 679262.

It is an arithmetic number, because the mean of its divisors is an integer number (120586752).

Almost surely, 2^1983917673 is an apocalyptic number.

It is an amenable number.

1983917673 is a deficient number, since it is larger than the sum of its proper divisors (910164375).

1983917673 is a wasteful number, since it uses less digits than its factorization.

1983917673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3653 (or 3650 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 1983917673 is about 44541.1907451967. The cubic root of 1983917673 is about 1256.5348803099.

The spelling of 1983917673 in words is "one billion, nine hundred eighty-three million, nine hundred seventeen thousand, six hundred seventy-three".