1983948393 has 8 divisors (see below), whose sum is σ = 3023159488. Its totient is φ = 1133684784.

The previous prime is 1983948383. The next prime is 1983948397. The reversal of 1983948393 is 3938493891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1983948393 - 2²⁹ = 1447077481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1983948397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47236846 + ... + 47236887.

It is an arithmetic number, because the mean of its divisors is an integer number (377894936).

Almost surely, 2^1983948393 is an apocalyptic number.

It is an amenable number.

1983948393 is a deficient number, since it is larger than the sum of its proper divisors (1039211095).

1983948393 is an equidigital number, since it uses as much as digits as its factorization.

1983948393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94473743.

The product of its digits is 5038848, while the sum is 57.

The square root of 1983948393 is about 44541.5355931966. The cubic root of 1983948393 is about 1256.5413658869.

The spelling of 1983948393 in words is "one billion, nine hundred eighty-three million, nine hundred forty-eight thousand, three hundred ninety-three".