10835821 has 4 divisors (see below), whose sum is σ = 11209500. Its totient is φ = 10462144.

The previous prime is 10835819. The next prime is 10835831. The reversal of 10835821 is 12853801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12853801 = 271 ⋅47431.

It can be written as a sum of positive squares in 2 ways, for example, as 6320196 + 4515625 = 2514^2 + 2125^2 .

It is a cyclic number.

It is not a de Polignac number, because 10835821 - 2¹ = 10835819 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 10835821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10835831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186796 + ... + 186853.

It is an arithmetic number, because the mean of its divisors is an integer number (2802375).

Almost surely, 2^10835821 is an apocalyptic number.

It is an amenable number.

10835821 is a deficient number, since it is larger than the sum of its proper divisors (373679).

10835821 is an equidigital number, since it uses as much as digits as its factorization.

10835821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373678.

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

The square root of 10835821 is about 3291.7808250247. The cubic root of 10835821 is about 221.2860011427.

The spelling of 10835821 in words is "ten million, eight hundred thirty-five thousand, eight hundred twenty-one".