8500241 has 4 divisors (see below), whose sum is σ = 8508900. Its totient is φ = 8491584.

The previous prime is 8500229. The next prime is 8500249. The reversal of 8500241 is 1420058.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1635841 + 6864400 = 1279^2 + 2620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8500241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8500249) 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, 2636 + ... + 4893.

It is an arithmetic number, because the mean of its divisors is an integer number (2127225).

Almost surely, 2^8500241 is an apocalyptic number.

It is an amenable number.

8500241 is a deficient number, since it is larger than the sum of its proper divisors (8659).

8500241 is a wasteful number, since it uses less digits than its factorization.

8500241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8658.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 8500241 is about 2915.5172782887. The cubic root of 8500241 is about 204.0846838598.

Adding to 8500241 its reverse (1420058), we get a palindrome (9920299).

The spelling of 8500241 in words is "eight million, five hundred thousand, two hundred forty-one".