11814821 has 8 divisors (see below), whose sum is σ = 12003264. Its totient is φ = 11628000.

The previous prime is 11814799. The next prime is 11814857. The reversal of 11814821 is 12841811.

11814821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11814821 - 2⁶ = 11814757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11814871) 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, 25625 + ... + 26081.

It is an arithmetic number, because the mean of its divisors is an integer number (1500408).

Almost surely, 2^11814821 is an apocalyptic number.

It is an amenable number.

11814821 is a deficient number, since it is larger than the sum of its proper divisors (188443).

11814821 is a wasteful number, since it uses less digits than its factorization.

11814821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811.

The product of its digits is 512, while the sum is 26.

The square root of 11814821 is about 3437.2694104478. The cubic root of 11814821 is about 227.7590881530.

The spelling of 11814821 in words is "eleven million, eight hundred fourteen thousand, eight hundred twenty-one".