11546821 has 8 divisors (see below), whose sum is σ = 13565664. Its totient is φ = 9689520.

The previous prime is 11546803. The next prime is 11546827. The reversal of 11546821 is 12864511.

11546821 is digitally balanced in base 3, 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 11546821 - 2⁷ = 11546693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11546821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11546827) 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, 40231 + ... + 40516.

It is an arithmetic number, because the mean of its divisors is an integer number (1695708).

Almost surely, 2^11546821 is an apocalyptic number.

11546821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11546821 is a deficient number, since it is larger than the sum of its proper divisors (2018843).

11546821 is a wasteful number, since it uses less digits than its factorization.

11546821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80771.

The product of its digits is 1920, while the sum is 28.

The square root of 11546821 is about 3398.0613590693. The cubic root of 11546821 is about 226.0237855771.

The spelling of 11546821 in words is "eleven million, five hundred forty-six thousand, eight hundred twenty-one".