8790820 has 12 divisors (see below), whose sum is σ = 18460764. Its totient is φ = 3516320.

The previous prime is 8790811. The next prime is 8790839. The reversal of 8790820 is 280978.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1597696 + 7193124 = 1264^2 + 2682^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219751 + ... + 219790.

It is an arithmetic number, because the mean of its divisors is an integer number (1538397).

Almost surely, 2^8790820 is an apocalyptic number.

It is an amenable number.

8790820 is an abundant number, since it is smaller than the sum of its proper divisors (9669944).

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

8790820 is a wasteful number, since it uses less digits than its factorization.

8790820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439550 (or 439548 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 8790820 is about 2964.9317024174. The cubic root of 8790820 is about 206.3842077235.

The spelling of 8790820 in words is "eight million, seven hundred ninety thousand, eight hundred twenty".