8213241 has 4 divisors (see below), whose sum is σ = 10950992. Its totient is φ = 5475492.

The previous prime is 8213221. The next prime is 8213267. The reversal of 8213241 is 1423128.

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 de Polignac number, because none of the positive numbers 2^k-8213241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8213221) 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, 1368871 + ... + 1368876.

It is an arithmetic number, because the mean of its divisors is an integer number (2737748).

Almost surely, 2^8213241 is an apocalyptic number.

It is an amenable number.

8213241 is a deficient number, since it is larger than the sum of its proper divisors (2737751).

8213241 is a wasteful number, since it uses less digits than its factorization.

8213241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737750.

The product of its digits is 384, while the sum is 21.

The square root of 8213241 is about 2865.8752589741. The cubic root of 8213241 is about 201.7614492719.

Adding to 8213241 its reverse (1423128), we get a palindrome (9636369).

The spelling of 8213241 in words is "eight million, two hundred thirteen thousand, two hundred forty-one".