10821650 has 48 divisors (see below), whose sum is σ = 23510400. Its totient is φ = 3704400.

The previous prime is 10821647. The next prime is 10821677. The reversal of 10821650 is 5612801.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 16835 + ... + 17465.

It is an arithmetic number, because the mean of its divisors is an integer number (489800).

Almost surely, 2^10821650 is an apocalyptic number.

10821650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10821650 is an abundant number, since it is smaller than the sum of its proper divisors (12688750).

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

10821650 is an equidigital number, since it uses as much as digits as its factorization.

10821650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 10821650 is about 3289.6276385026. The cubic root of 10821650 is about 221.1894937060.

The spelling of 10821650 in words is "ten million, eight hundred twenty-one thousand, six hundred fifty".