8216441 has 4 divisors (see below), whose sum is σ = 8416884. Its totient is φ = 8016000.

The previous prime is 8216437. The next prime is 8216447. The reversal of 8216441 is 1446128.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1430416 + 6786025 = 1196^2 + 2605^2 .

It is a cyclic number.

It is not a de Polignac number, because 8216441 - 2² = 8216437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8216441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8216447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100160 + ... + 100241.

It is an arithmetic number, because the mean of its divisors is an integer number (2104221).

Almost surely, 2^8216441 is an apocalyptic number.

It is an amenable number.

8216441 is a deficient number, since it is larger than the sum of its proper divisors (200443).

8216441 is a wasteful number, since it uses less digits than its factorization.

8216441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200442.

The product of its digits is 1536, while the sum is 26.

The square root of 8216441 is about 2866.4334982692. The cubic root of 8216441 is about 201.7876489497.

The spelling of 8216441 in words is "eight million, two hundred sixteen thousand, four hundred forty-one".