9990103808 has 36 divisors (see below), whose sum is σ = 19957452480. Its totient is φ = 4990977024.

The previous prime is 9990103793. The next prime is 9990103813. The reversal of 9990103808 is 8083010999.

It is a super-2 number, since 2×9990103808² (a number of 21 digits) contains 22 as substring.

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, 311633 + ... + 342191.

It is an arithmetic number, because the mean of its divisors is an integer number (554373680).

Almost surely, 2^9990103808 is an apocalyptic number.

It is an amenable number.

9990103808 is a deficient number, since it is larger than the sum of its proper divisors (9967348672).

9990103808 is a wasteful number, since it uses less digits than its factorization.

9990103808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31852 (or 31838 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 9990103808 is about 99950.5067921119. The cubic root of 9990103808 is about 2153.7237654873.

The spelling of 9990103808 in words is "nine billion, nine hundred ninety million, one hundred three thousand, eight hundred eight".