9945612 has 48 divisors (see below), whose sum is σ = 27306720. Its totient is φ = 3119616.

The previous prime is 9945587. The next prime is 9945619. The reversal of 9945612 is 2165499.

9945612 is a `hidden beast` number, since 9 + 94 + 561 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (9945619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 873 + ... + 4544.

It is an arithmetic number, because the mean of its divisors is an integer number (568890).

Almost surely, 2^9945612 is an apocalyptic number.

It is an amenable number.

9945612 is an abundant number, since it is smaller than the sum of its proper divisors (17361108).

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

9945612 is a wasteful number, since it uses less digits than its factorization.

9945612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5447 (or 5439 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 9945612 is about 3153.6664376563. Note that the first 3 decimals coincide. The cubic root of 9945612 is about 215.0521741055.

The spelling of 9945612 in words is "nine million, nine hundred forty-five thousand, six hundred twelve".