9859830990 has 32 divisors (see below), whose sum is σ = 23666933376. Its totient is φ = 2628917280.

The previous prime is 9859830941. The next prime is 9859831013. The reversal of 9859830990 is 990389589.

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, 243109 + ... + 280751.

It is an arithmetic number, because the mean of its divisors is an integer number (739591668).

Almost surely, 2^9859830990 is an apocalyptic number.

9859830990 is an abundant number, since it is smaller than the sum of its proper divisors (13807102386).

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

9859830990 is a wasteful number, since it uses less digits than its factorization.

9859830990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46384.

The product of its (nonzero) digits is 6298560, while the sum is 60.

The square root of 9859830990 is about 99296.6816666096. The cubic root of 9859830990 is about 2144.3211222559.

The spelling of 9859830990 in words is "nine billion, eight hundred fifty-nine million, eight hundred thirty thousand, nine hundred ninety".