9877938 has 32 divisors (see below), whose sum is σ = 22671360. Its totient is φ = 2810640.

The previous prime is 9877937. The next prime is 9877961. The reversal of 9877938 is 8397789.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9877937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19873 + ... + 20363.

It is an arithmetic number, because the mean of its divisors is an integer number (708480).

Almost surely, 2^9877938 is an apocalyptic number.

9877938 is an abundant number, since it is smaller than the sum of its proper divisors (12793422).

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

9877938 is a wasteful number, since it uses less digits than its factorization.

9877938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982.

The product of its digits is 762048, while the sum is 51.

The square root of 9877938 is about 3142.9187071892. The cubic root of 9877938 is about 214.5632960166.

The spelling of 9877938 in words is "nine million, eight hundred seventy-seven thousand, nine hundred thirty-eight".