11826321 has 16 divisors (see below), whose sum is σ = 17060736. Its totient is φ = 7243776.

The previous prime is 11826317. The next prime is 11826329. The reversal of 11826321 is 12362811.

It is not a de Polignac number, because 11826321 - 2² = 11826317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11826291 and 11826300.

It is not an unprimeable number, because it can be changed into a prime (11826329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9681 + ... + 10833.

It is an arithmetic number, because the mean of its divisors is an integer number (1066296).

Almost surely, 2^11826321 is an apocalyptic number.

It is an amenable number.

11826321 is a deficient number, since it is larger than the sum of its proper divisors (5234415).

11826321 is a wasteful number, since it uses less digits than its factorization.

11826321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432.

The product of its digits is 576, while the sum is 24.

The square root of 11826321 is about 3438.9418430674. The cubic root of 11826321 is about 227.8329609088.

It can be divided in two parts, 1182 and 6321, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 11826321 in words is "eleven million, eight hundred twenty-six thousand, three hundred twenty-one".