9945712 has 20 divisors (see below), whose sum is σ = 22022896. Its totient is φ = 4262400.

The previous prime is 9945709. The next prime is 9945743. The reversal of 9945712 is 2175499.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 44289 + ... + 44512.

Almost surely, 2^9945712 is an apocalyptic number.

It is an amenable number.

9945712 is an abundant number, since it is smaller than the sum of its proper divisors (12077184).

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

9945712 is a wasteful number, since it uses less digits than its factorization.

9945712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88816 (or 88810 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 9945712 is about 3153.6822921785. The cubic root of 9945712 is about 215.0528948637.

The spelling of 9945712 in words is "nine million, nine hundred forty-five thousand, seven hundred twelve".