8900020 has 12 divisors (see below), whose sum is σ = 18690084. Its totient is φ = 3560000.

The previous prime is 8899997. The next prime is 8900029. The reversal of 8900020 is 200098.

It can be written as a sum of positive squares in 2 ways, for example, as 1468944 + 7431076 = 1212^2 + 2726^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8900029) 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 3 ways as a sum of consecutive naturals, for example, 222481 + ... + 222520.

It is an arithmetic number, because the mean of its divisors is an integer number (1557507).

Almost surely, 2^8900020 is an apocalyptic number.

It is an amenable number.

8900020 is an abundant number, since it is smaller than the sum of its proper divisors (9790064).

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

8900020 is a wasteful number, since it uses less digits than its factorization.

8900020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445010 (or 445008 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 8900020 is about 2983.2901300410. The cubic root of 8900020 is about 207.2352650381.

The spelling of 8900020 in words is "eight million, nine hundred thousand, twenty".