9902241 has 6 divisors (see below), whose sum is σ = 14303250. Its totient is φ = 6601488.

The previous prime is 9902239. The next prime is 9902257. The reversal of 9902241 is 1422099.

It can be written as a sum of positive squares in only one way, i.e., 8910225 + 992016 = 2985^2 + 996^2 .

It is not a de Polignac number, because 9902241 - 2¹ = 9902239 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9902281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 550116 + ... + 550133.

It is an arithmetic number, because the mean of its divisors is an integer number (2383875).

Almost surely, 2^9902241 is an apocalyptic number.

It is an amenable number.

9902241 is a deficient number, since it is larger than the sum of its proper divisors (4401009).

9902241 is a wasteful number, since it uses less digits than its factorization.

9902241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100255 (or 1100252 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 9902241 is about 3146.7826426368. The cubic root of 9902241 is about 214.7391174996.

The spelling of 9902241 in words is "nine million, nine hundred two thousand, two hundred forty-one".