10836821 has 4 divisors (see below), whose sum is σ = 11407200. Its totient is φ = 10266444.

The previous prime is 10836811. The next prime is 10836827. The reversal of 10836821 is 12863801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10836821 - 2¹⁴ = 10820437 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 (10836827) 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 3 ways as a sum of consecutive naturals, for example, 285161 + ... + 285198.

It is an arithmetic number, because the mean of its divisors is an integer number (2851800).

Almost surely, 2^10836821 is an apocalyptic number.

It is an amenable number.

10836821 is a deficient number, since it is larger than the sum of its proper divisors (570379).

10836821 is an equidigital number, since it uses as much as digits as its factorization.

10836821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570378.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 10836821 is about 3291.9327149867. The cubic root of 10836821 is about 221.2928081701.

The spelling of 10836821 in words is "ten million, eight hundred thirty-six thousand, eight hundred twenty-one".