3584921 has 2 divisors, whose sum is σ = 3584922. Its totient is φ = 3584920.

The previous prime is 3584873. The next prime is 3584923. The reversal of 3584921 is 1294853.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3200521 + 384400 = 1789^2 + 620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3584921 is a prime.

It is a Sophie Germain prime.

Together with 3584923, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3584923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1792460 + 1792461.

It is an arithmetic number, because the mean of its divisors is an integer number (1792461).

Almost surely, 2^3584921 is an apocalyptic number.

It is an amenable number.

3584921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3584921 is an equidigital number, since it uses as much as digits as its factorization.

3584921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 3584921 is about 1893.3887609258. The cubic root of 3584921 is about 153.0476022016.

The spelling of 3584921 in words is "three million, five hundred eighty-four thousand, nine hundred twenty-one".