6816241 has 4 divisors (see below), whose sum is σ = 6828912. Its totient is φ = 6803572.

The previous prime is 6816239. The next prime is 6816253. The reversal of 6816241 is 1426186.

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 cyclic number.

It is not a de Polignac number, because 6816241 - 2¹ = 6816239 is a prime.

It is a super-2 number, since 2×6816241² = 92922282740162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6816281) 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, 5491 + ... + 6616.

It is an arithmetic number, because the mean of its divisors is an integer number (1707228).

Almost surely, 2^6816241 is an apocalyptic number.

It is an amenable number.

6816241 is a deficient number, since it is larger than the sum of its proper divisors (12671).

6816241 is a wasteful number, since it uses less digits than its factorization.

6816241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12670.

The product of its digits is 2304, while the sum is 28.

The square root of 6816241 is about 2610.7931744970. The cubic root of 6816241 is about 189.6043567664.

The spelling of 6816241 in words is "six million, eight hundred sixteen thousand, two hundred forty-one".