9990106 has 16 divisors (see below), whose sum is σ = 17170560. Its totient is φ = 4270320.

The previous prime is 9990089. The next prime is 9990121. The reversal of 9990106 is 6010999.

It is a happy number.

It is a super-3 number, since 3×9990106³ (a number of 22 digits) contains 333 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6915 + ... + 8233.

It is an arithmetic number, because the mean of its divisors is an integer number (1073160).

Almost surely, 2^9990106 is an apocalyptic number.

9990106 is a deficient number, since it is larger than the sum of its proper divisors (7180454).

9990106 is a wasteful number, since it uses less digits than its factorization.

9990106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 9990106 is about 3160.7128942693. The cubic root of 9990106 is about 215.3723923009.

The spelling of 9990106 in words is "nine million, nine hundred ninety thousand, one hundred six".