8869820 has 24 divisors (see below), whose sum is σ = 18815328. Its totient is φ = 3512000.

The previous prime is 8869799. The next prime is 8869837. The reversal of 8869820 is 289688.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176 + ... + 4215.

It is an arithmetic number, because the mean of its divisors is an integer number (783972).

Almost surely, 2^8869820 is an apocalyptic number.

It is an amenable number.

8869820 is an abundant number, since it is smaller than the sum of its proper divisors (9945508).

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

8869820 is a wasteful number, since it uses less digits than its factorization.

8869820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501 (or 4499 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 8869820 is about 2978.2243031713. The cubic root of 8869820 is about 207.0005990010. Note that the first 3 decimals are identical.

The spelling of 8869820 in words is "eight million, eight hundred sixty-nine thousand, eight hundred twenty".