10821061 has 4 divisors (see below), whose sum is σ = 11457612. Its totient is φ = 10184512.

The previous prime is 10821049. The next prime is 10821067. The reversal of 10821061 is 16012801.

10821061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6220036 + 4601025 = 2494^2 + 2145^2 .

It is a cyclic number.

It is not a de Polignac number, because 10821061 - 2⁷ = 10820933 is a prime.

It is a super-2 number, since 2×10821061² = 234190722331442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10821067) 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, 318250 + ... + 318283.

It is an arithmetic number, because the mean of its divisors is an integer number (2864403).

Almost surely, 2^10821061 is an apocalyptic number.

It is an amenable number.

10821061 is a deficient number, since it is larger than the sum of its proper divisors (636551).

10821061 is an equidigital number, since it uses as much as digits as its factorization.

10821061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636550.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 10821061 is about 3289.5381134743. The cubic root of 10821061 is about 221.1854806711.

Adding to 10821061 its reverse (16012801), we get a palindrome (26833862).

The spelling of 10821061 in words is "ten million, eight hundred twenty-one thousand, sixty-one".