8020900 has 18 divisors (see below), whose sum is σ = 17405570. Its totient is φ = 3208320.

The previous prime is 8020891. The next prime is 8020913. The reversal of 8020900 is 90208.

It can be written as a sum of positive squares in 3 ways, for example, as 676 + 8020224 = 26^2 + 2832^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40005 + ... + 40204.

Almost surely, 2^8020900 is an apocalyptic number.

It is an amenable number.

8020900 is an abundant number, since it is smaller than the sum of its proper divisors (9384670).

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

8020900 is a wasteful number, since it uses less digits than its factorization.

8020900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80223 (or 80216 counting only the distinct ones).

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

The square root of 8020900 is about 2832.1193477677. The cubic root of 8020900 is about 200.1740152163.

The spelling of 8020900 in words is "eight million, twenty thousand, nine hundred".