11622321 has 6 divisors (see below), whose sum is σ = 16787810. Its totient is φ = 7748208.

The previous prime is 11622293. The next prime is 11622323. The reversal of 11622321 is 12322611.

11622321 is a `hidden beast` number, since 11 + 622 + 32 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5934096 + 5688225 = 2436^2 + 2385^2 .

It is not a de Polignac number, because 11622321 - 2⁹ = 11621809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11622294 and 11622303.

It is not an unprimeable number, because it can be changed into a prime (11622323) 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 in 5 ways as a sum of consecutive naturals, for example, 645676 + ... + 645693.

Almost surely, 2^11622321 is an apocalyptic number.

It is an amenable number.

11622321 is a deficient number, since it is larger than the sum of its proper divisors (5165489).

11622321 is a wasteful number, since it uses less digits than its factorization.

11622321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291375 (or 1291372 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 11622321 is about 3409.1525339885. The cubic root of 11622321 is about 226.5153418551.

Adding to 11622321 its reverse (12322611), we get a palindrome (23944932).

The spelling of 11622321 in words is "eleven million, six hundred twenty-two thousand, three hundred twenty-one".