9900241 has 8 divisors (see below), whose sum is σ = 10863720. Its totient is φ = 8965632.

The previous prime is 9900203. The next prime is 9900251. The reversal of 9900241 is 1420099.

It can be written as a sum of positive squares in 4 ways, for example, as 1256641 + 8643600 = 1121^2 + 2940^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9900241 - 2⁷ = 9900113 is a prime.

It is a Duffinian number.

9900241 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9900251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6496 + ... + 7873.

It is an arithmetic number, because the mean of its divisors is an integer number (1357965).

Almost surely, 2^9900241 is an apocalyptic number.

It is an amenable number.

9900241 is a deficient number, since it is larger than the sum of its proper divisors (963479).

9900241 is a wasteful number, since it uses less digits than its factorization.

9900241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14435.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 9900241 is about 3146.4648416914. The cubic root of 9900241 is about 214.7246592522.

It can be divided in two parts, 990024 and 1, that added together give a square (990025 = 995²).

The spelling of 9900241 in words is "nine million, nine hundred thousand, two hundred forty-one".