9411921 has 12 divisors (see below), whose sum is σ = 14064180. Its totient is φ = 6058080.

The previous prime is 9411917. The next prime is 9411937. The reversal of 9411921 is 1291149.

9411921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3651921 + 5760000 = 1911^2 + 2400^2 .

It is not a de Polignac number, because 9411921 - 2² = 9411917 is a prime.

It is an Ulam number.

It is a Curzon number.

9411921 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9411901) 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 11 ways as a sum of consecutive naturals, for example, 17770 + ... + 18291.

It is an arithmetic number, because the mean of its divisors is an integer number (1172015).

Almost surely, 2^9411921 is an apocalyptic number.

It is an amenable number.

9411921 is a deficient number, since it is larger than the sum of its proper divisors (4652259).

9411921 is a wasteful number, since it uses less digits than its factorization.

9411921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36096 (or 36093 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 9411921 is about 3067.8854281084. The cubic root of 9411921 is about 211.1346071007.

The spelling of 9411921 in words is "nine million, four hundred eleven thousand, nine hundred twenty-one".