9982637808 has 80 divisors (see below), whose sum is σ = 30296977536. Its totient is φ = 2792344320.

The previous prime is 9982637761. The next prime is 9982637827. The reversal of 9982637808 is 8087362899.

It is a super-2 number, since 2×9982637808² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 720310 + ... + 734037.

Almost surely, 2^9982637808 is an apocalyptic number.

It is an amenable number.

9982637808 is an abundant number, since it is smaller than the sum of its proper divisors (20314339728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9982637808 is a wasteful number, since it uses less digits than its factorization.

9982637808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454382 (or 1454376 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 60.

The square root of 9982637808 is about 99913.1513265396. The cubic root of 9982637808 is about 2153.1871107714.

It can be divided in two parts, 998263 and 7808, that added together give a triangular number (1006071 = T₁₄₁₈).

The spelling of 9982637808 in words is "nine billion, nine hundred eighty-two million, six hundred thirty-seven thousand, eight hundred eight".