8859820 has 12 divisors (see below), whose sum is σ = 18605664. Its totient is φ = 3543920.

The previous prime is 8859817. The next prime is 8859827. The reversal of 8859820 is 289588.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8859827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221476 + ... + 221515.

It is an arithmetic number, because the mean of its divisors is an integer number (1550472).

Almost surely, 2^8859820 is an apocalyptic number.

It is an amenable number.

8859820 is an abundant number, since it is smaller than the sum of its proper divisors (9745844).

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

8859820 is a wasteful number, since it uses less digits than its factorization.

8859820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443000 (or 442998 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 8859820 is about 2976.5449769825. The cubic root of 8859820 is about 206.9227776397.

The spelling of 8859820 in words is "eight million, eight hundred fifty-nine thousand, eight hundred twenty".