8812821 has 8 divisors (see below), whose sum is σ = 11803104. Its totient is φ = 5848880.

The previous prime is 8812819. The next prime is 8812831. The reversal of 8812821 is 1282188.

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 8812821 - 2¹ = 8812819 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8812801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5790 + ... + 7151.

It is an arithmetic number, because the mean of its divisors is an integer number (1475388).

Almost surely, 2^8812821 is an apocalyptic number.

It is an amenable number.

8812821 is a deficient number, since it is larger than the sum of its proper divisors (2990283).

8812821 is a wasteful number, since it uses less digits than its factorization.

8812821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13171.

The product of its digits is 2048, while the sum is 30.

The square root of 8812821 is about 2968.6395874205. The cubic root of 8812821 is about 206.5562385544.

The spelling of 8812821 in words is "eight million, eight hundred twelve thousand, eight hundred twenty-one".