9990241 has 4 divisors (see below), whose sum is σ = 10005552. Its totient is φ = 9974932.

The previous prime is 9990221. The next prime is 9990251. The reversal of 9990241 is 1420999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9990241 - 2⁵ = 9990209 is a prime.

It is a Duffinian number.

9990241 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9990197 and 9990206.

It is not an unprimeable number, because it can be changed into a prime (9990221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6631 + ... + 7996.

It is an arithmetic number, because the mean of its divisors is an integer number (2501388).

Almost surely, 2^9990241 is an apocalyptic number.

It is an amenable number.

9990241 is a deficient number, since it is larger than the sum of its proper divisors (15311).

9990241 is a wasteful number, since it uses less digits than its factorization.

9990241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15310.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 9990241 is about 3160.7342501387. The cubic root of 9990241 is about 215.3733624321.

The spelling of 9990241 in words is "nine million, nine hundred ninety thousand, two hundred forty-one".