8928820 has 12 divisors (see below), whose sum is σ = 18750564. Its totient is φ = 3571520.

The previous prime is 8928811. The next prime is 8928847. The reversal of 8928820 is 288298.

It can be written as a sum of positive squares in 2 ways, for example, as 3139984 + 5788836 = 1772^2 + 2406^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8928820.

It is a congruent number.

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, 223201 + ... + 223240.

It is an arithmetic number, because the mean of its divisors is an integer number (1562547).

Almost surely, 2^8928820 is an apocalyptic number.

It is an amenable number.

8928820 is an abundant number, since it is smaller than the sum of its proper divisors (9821744).

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

8928820 is a wasteful number, since it uses less digits than its factorization.

8928820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446450 (or 446448 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 8928820 is about 2988.1131170021. The cubic root of 8928820 is about 207.4585585213.

The spelling of 8928820 in words is "eight million, nine hundred twenty-eight thousand, eight hundred twenty".