3584021 has 16 divisors (see below), whose sum is σ = 4333824. Its totient is φ = 2897664.

The previous prime is 3584017. The next prime is 3584033. The reversal of 3584021 is 1204853.

It is not a de Polignac number, because 3584021 - 2² = 3584017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3584011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18095 + ... + 18291.

It is an arithmetic number, because the mean of its divisors is an integer number (270864).

Almost surely, 2^3584021 is an apocalyptic number.

It is an amenable number.

3584021 is a deficient number, since it is larger than the sum of its proper divisors (749803).

3584021 is a wasteful number, since it uses less digits than its factorization.

3584021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 3584021 is about 1893.1510769085. The cubic root of 3584021 is about 153.0347935167.

Adding to 3584021 its reverse (1204853), we get a palindrome (4788874).

The spelling of 3584021 in words is "three million, five hundred eighty-four thousand, twenty-one".