9881942 has 16 divisors (see below), whose sum is σ = 17030400. Its totient is φ = 4212648.

The previous prime is 9881909. The next prime is 9881951. The reversal of 9881942 is 2491889.

9881942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 9881942.

It is a congruent 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, 1013 + ... + 4559.

It is an arithmetic number, because the mean of its divisors is an integer number (1064400).

Almost surely, 2^9881942 is an apocalyptic number.

9881942 is a deficient number, since it is larger than the sum of its proper divisors (7148458).

9881942 is a wasteful number, since it uses less digits than its factorization.

9881942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755.

The product of its digits is 41472, while the sum is 41.

The square root of 9881942 is about 3143.5556301742. Note that the first 3 decimals coincide. The cubic root of 9881942 is about 214.5922830171.

The spelling of 9881942 in words is "nine million, eight hundred eighty-one thousand, nine hundred forty-two".