8783920 has 40 divisors (see below), whose sum is σ = 20779920. Its totient is φ = 3452160.

The previous prime is 8783903. The next prime is 8783921. The reversal of 8783920 is 293878.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8783920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8783921) 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, 3790 + ... + 5650.

It is an arithmetic number, because the mean of its divisors is an integer number (519498).

Almost surely, 2^8783920 is an apocalyptic number.

8783920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8783920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10389960).

8783920 is an abundant number, since it is smaller than the sum of its proper divisors (11996000).

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

8783920 is a wasteful number, since it uses less digits than its factorization.

8783920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933 (or 1927 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 8783920 is about 2963.7678721519. The cubic root of 8783920 is about 206.3301959332.

The spelling of 8783920 in words is "eight million, seven hundred eighty-three thousand, nine hundred twenty".