9997443982 has 8 divisors (see below), whose sum is σ = 15002870400. Its totient is φ = 4996487184.

The previous prime is 9997443979. The next prime is 9997444043. The reversal of 9997443982 is 2893447999.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111807 + ... + 1120762.

It is an arithmetic number, because the mean of its divisors is an integer number (1875358800).

Almost surely, 2^9997443982 is an apocalyptic number.

9997443982 is a deficient number, since it is larger than the sum of its proper divisors (5005426418).

9997443982 is a wasteful number, since it uses less digits than its factorization.

9997443982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234810.

The product of its digits is 35271936, while the sum is 64.

The square root of 9997443982 is about 99987.2190932421. The cubic root of 9997443982 is about 2154.2511152621.

The spelling of 9997443982 in words is "nine billion, nine hundred ninety-seven million, four hundred forty-three thousand, nine hundred eighty-two".