9983890770 has 32 divisors (see below), whose sum is σ = 27384386688. Its totient is φ = 2282032128.

The previous prime is 9983890711. The next prime is 9983890793. The reversal of 9983890770 is 770983899.

It is a happy 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, 23770959 + ... + 23771378.

It is an arithmetic number, because the mean of its divisors is an integer number (855762084).

Almost surely, 2^9983890770 is an apocalyptic number.

9983890770 is an abundant number, since it is smaller than the sum of its proper divisors (17400495918).

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

9983890770 is a wasteful number, since it uses less digits than its factorization.

9983890770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47542354.

The product of its (nonzero) digits is 6858432, while the sum is 60.

The square root of 9983890770 is about 99919.4213854344. The cubic root of 9983890770 is about 2153.2771921311.

The spelling of 9983890770 in words is "nine billion, nine hundred eighty-three million, eight hundred ninety thousand, seven hundred seventy".