8953012821 has 32 divisors (see below), whose sum is σ = 13204581120. Its totient is φ = 5367025664.

The previous prime is 8953012807. The next prime is 8953012829. The reversal of 8953012821 is 1282103598.

8953012821 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8953012821 - 2⁹ = 8953012309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8953012821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8953012829) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1113865 + ... + 1121873.

It is an arithmetic number, because the mean of its divisors is an integer number (412643160).

Almost surely, 2^8953012821 is an apocalyptic number.

It is an amenable number.

8953012821 is a deficient number, since it is larger than the sum of its proper divisors (4251568299).

8953012821 is a wasteful number, since it uses less digits than its factorization.

8953012821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9005.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 8953012821 is about 94620.3615560626. The cubic root of 8953012821 is about 2076.4576062066.

The spelling of 8953012821 in words is "eight billion, nine hundred fifty-three million, twelve thousand, eight hundred twenty-one".