9631940 has 24 divisors (see below), whose sum is σ = 21107520. Its totient is φ = 3685088.

The previous prime is 9631913. The next prime is 9631991. The reversal of 9631940 is 491369.

9631940 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 9631897 and 9631906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10010 + ... + 10929.

It is an arithmetic number, because the mean of its divisors is an integer number (879480).

Almost surely, 2^9631940 is an apocalyptic number.

It is an amenable number.

9631940 is an abundant number, since it is smaller than the sum of its proper divisors (11475580).

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

9631940 is a wasteful number, since it uses less digits than its factorization.

9631940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20971 (or 20969 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 9631940 is about 3103.5366922271. The cubic root of 9631940 is about 212.7671564911.

The spelling of 9631940 in words is "nine million, six hundred thirty-one thousand, nine hundred forty".