10821306 has 8 divisors (see below), whose sum is σ = 21642624. Its totient is φ = 3607100.

The previous prime is 10821287. The next prime is 10821313. The reversal of 10821306 is 60312801.

It is a sphenic number, since it is the product of 3 distinct primes.

10821306 is an admirable number.

It is an unprimeable number.

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, 901770 + ... + 901781.

It is an arithmetic number, because the mean of its divisors is an integer number (2705328).

Almost surely, 2^10821306 is an apocalyptic number.

10821306 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10821306 is a wasteful number, since it uses less digits than its factorization.

10821306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803556.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 10821306 is about 3289.5753525341. The cubic root of 10821306 is about 221.1871499478.

The spelling of 10821306 in words is "ten million, eight hundred twenty-one thousand, three hundred six".