8789990 has 32 divisors (see below), whose sum is σ = 17690400. Its totient is φ = 3116800.

The previous prime is 8789983. The next prime is 8789999. The reversal of 8789990 is 999878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8789999) 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 15 ways as a sum of consecutive naturals, for example, 3536 + ... + 5484.

It is an arithmetic number, because the mean of its divisors is an integer number (552825).

Almost surely, 2^8789990 is an apocalyptic number.

8789990 is an abundant number, since it is smaller than the sum of its proper divisors (8900410).

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

8789990 is a wasteful number, since it uses less digits than its factorization.

8789990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008.

The product of its (nonzero) digits is 326592, while the sum is 50.

The square root of 8789990 is about 2964.7917296161. The cubic root of 8789990 is about 206.3777121488.

It can be divided in two parts, 8789 and 990, that added together give a palindrome (9779).

The spelling of 8789990 in words is "eight million, seven hundred eighty-nine thousand, nine hundred ninety".