10485821 has 8 divisors (see below), whose sum is σ = 11132280. Its totient is φ = 9842688.

The previous prime is 10485817. The next prime is 10485869. The reversal of 10485821 is 12858401.

It can be written as a sum of positive squares in 4 ways, for example, as 6180196 + 4305625 = 2486^2 + 2075^2 .

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 10485821 - 2² = 10485817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10485721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9275 + ... + 10343.

It is an arithmetic number, because the mean of its divisors is an integer number (1391535).

Almost surely, 2^10485821 is an apocalyptic number.

It is an amenable number.

10485821 is a deficient number, since it is larger than the sum of its proper divisors (646459).

10485821 is a wasteful number, since it uses less digits than its factorization.

10485821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 10485821 is about 3238.1817428921. The cubic root of 10485821 is about 218.8773456063.

The spelling of 10485821 in words is "ten million, four hundred eighty-five thousand, eight hundred twenty-one".