9911944 has 32 divisors (see below), whose sum is σ = 21352320. Its totient is φ = 4225536.

The previous prime is 9911929. The next prime is 9911953. The reversal of 9911944 is 4491199.

9911944 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

9911944 is strictly pandigital in base 8.

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, 14392 + ... + 15064.

It is an arithmetic number, because the mean of its divisors is an integer number (667260).

Almost surely, 2^9911944 is an apocalyptic number.

It is an amenable number.

9911944 is an abundant number, since it is smaller than the sum of its proper divisors (11440376).

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

9911944 is a wasteful number, since it uses less digits than its factorization.

9911944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949 (or 945 counting only the distinct ones).

The product of its digits is 11664, while the sum is 37.

The square root of 9911944 is about 3148.3239985745. The cubic root of 9911944 is about 214.8092340677.

The spelling of 9911944 in words is "nine million, nine hundred eleven thousand, nine hundred forty-four".