3623321 has 4 divisors (see below), whose sum is σ = 3902052. Its totient is φ = 3344592.

The previous prime is 3623287. The next prime is 3623353. The reversal of 3623321 is 1233263.

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 1177225 + 2446096 = 1085^2 + 1564^2 .

It is a cyclic number.

It is not a de Polignac number, because 3623321 - 2¹⁸ = 3361177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3623293 and 3623302.

It is not an unprimeable number, because it can be changed into a prime (3623381) 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, 139346 + ... + 139371.

It is an arithmetic number, because the mean of its divisors is an integer number (975513).

Almost surely, 2^3623321 is an apocalyptic number.

It is an amenable number.

3623321 is a deficient number, since it is larger than the sum of its proper divisors (278731).

3623321 is a wasteful number, since it uses less digits than its factorization.

3623321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278730.

The product of its digits is 648, while the sum is 20.

The square root of 3623321 is about 1903.5022983963. The cubic root of 3623321 is about 153.5921207483.

Adding to 3623321 its reverse (1233263), we get a palindrome (4856584).

The spelling of 3623321 in words is "three million, six hundred twenty-three thousand, three hundred twenty-one".