8211243 has 4 divisors (see below), whose sum is σ = 10948328. Its totient is φ = 5474160.

The previous prime is 8211227. The next prime is 8211331. The reversal of 8211243 is 3421128.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8211243 - 2⁴ = 8211227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8211043) 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, 1368538 + ... + 1368543.

It is an arithmetic number, because the mean of its divisors is an integer number (2737082).

Almost surely, 2^8211243 is an apocalyptic number.

8211243 is a deficient number, since it is larger than the sum of its proper divisors (2737085).

8211243 is a wasteful number, since it uses less digits than its factorization.

8211243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737084.

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

The square root of 8211243 is about 2865.5266531652. The cubic root of 8211243 is about 201.7450873968.

It can be divided in two parts, 82 and 11243, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 8211243 in words is "eight million, two hundred eleven thousand, two hundred forty-three".