9949521 has 12 divisors (see below), whose sum is σ = 14002512. Its totient is φ = 6283224.

The previous prime is 9949519. The next prime is 9949549. The reversal of 9949521 is 1259499.

9949521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9949521 - 2¹ = 9949519 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9949521.

It is not an unprimeable number, because it can be changed into a prime (9949021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3511 + ... + 5676.

It is an arithmetic number, because the mean of its divisors is an integer number (1166876).

Almost surely, 2^9949521 is an apocalyptic number.

It is an amenable number.

9949521 is a deficient number, since it is larger than the sum of its proper divisors (4052991).

9949521 is a wasteful number, since it uses less digits than its factorization.

9949521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9228 (or 9209 counting only the distinct ones).

The product of its digits is 29160, while the sum is 39.

The square root of 9949521 is about 3154.2861315994. The cubic root of 9949521 is about 215.0803449490.

The spelling of 9949521 in words is "nine million, nine hundred forty-nine thousand, five hundred twenty-one".