3216841 has 4 divisors (see below), whose sum is σ = 3220432. Its totient is φ = 3213252.

The previous prime is 3216827. The next prime is 3216853. The reversal of 3216841 is 1486123.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3216841 - 2¹⁷ = 3085769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3216881) 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, 790 + ... + 2656.

It is an arithmetic number, because the mean of its divisors is an integer number (805108).

Almost surely, 2^3216841 is an apocalyptic number.

It is an amenable number.

3216841 is a deficient number, since it is larger than the sum of its proper divisors (3591).

3216841 is a wasteful number, since it uses less digits than its factorization.

3216841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3590.

The product of its digits is 1152, while the sum is 25.

The square root of 3216841 is about 1793.5554075634. Note that the first 3 decimals coincide. The cubic root of 3216841 is about 147.6193193279.

The spelling of 3216841 in words is "three million, two hundred sixteen thousand, eight hundred forty-one".