8821002 has 16 divisors (see below), whose sum is σ = 17975520. Its totient is φ = 2884752.

The previous prime is 8820971. The next prime is 8821003. The reversal of 8821002 is 2001288.

It is a self number, because there is not a number n which added to its sum of digits gives 8821002.

It is not an unprimeable number, because it can be changed into a prime (8821003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13552 + ... + 14187.

It is an arithmetic number, because the mean of its divisors is an integer number (1123470).

Almost surely, 2^8821002 is an apocalyptic number.

8821002 is an abundant number, since it is smaller than the sum of its proper divisors (9154518).

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

8821002 is a wasteful number, since it uses less digits than its factorization.

8821002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27797.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 8821002 is about 2970.0171716675. The cubic root of 8821002 is about 206.6201346273.

The spelling of 8821002 in words is "eight million, eight hundred twenty-one thousand, two".