11662321 has 8 divisors (see below), whose sum is σ = 13161600. Its totient is φ = 10236240.

The previous prime is 11662319. The next prime is 11662351. The reversal of 11662321 is 12326611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11662321 - 2¹ = 11662319 is a prime.

It is a super-2 number, since 2×11662321² = 272019462214082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11662292 and 11662301.

It is not an unprimeable number, because it can be changed into a prime (11662351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17961 + ... + 18598.

It is an arithmetic number, because the mean of its divisors is an integer number (1645200).

Almost surely, 2^11662321 is an apocalyptic number.

11662321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11662321 is a deficient number, since it is larger than the sum of its proper divisors (1499279).

11662321 is a wasteful number, since it uses less digits than its factorization.

11662321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36599.

The product of its digits is 432, while the sum is 22.

The square root of 11662321 is about 3415.0140556080. The cubic root of 11662321 is about 226.7749067334.

Adding to 11662321 its reverse (12326611), we get a palindrome (23988932).

The spelling of 11662321 in words is "eleven million, six hundred sixty-two thousand, three hundred twenty-one".