8786920 has 32 divisors (see below), whose sum is σ = 20632320. Its totient is φ = 3361600.

The previous prime is 8786917. The next prime is 8786927. The reversal of 8786920 is 296878.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8786927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3856 + ... + 5695.

It is an arithmetic number, because the mean of its divisors is an integer number (644760).

Almost surely, 2^8786920 is an apocalyptic number.

It is an amenable number.

8786920 is an abundant number, since it is smaller than the sum of its proper divisors (11845400).

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

8786920 is a wasteful number, since it uses less digits than its factorization.

8786920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9585 (or 9581 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 8786920 is about 2964.2739414568. The cubic root of 8786920 is about 206.3536827945.

The spelling of 8786920 in words is "eight million, seven hundred eighty-six thousand, nine hundred twenty".