8788720 has 20 divisors (see below), whose sum is σ = 20433960. Its totient is φ = 3515456.

The previous prime is 8788673. The next prime is 8788723. The reversal of 8788720 is 278878.

It is a tau number, because it is divible by the number of its divisors (20).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8788723) 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, 54850 + ... + 55009.

It is an arithmetic number, because the mean of its divisors is an integer number (1021698).

Almost surely, 2^8788720 is an apocalyptic number.

8788720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8788720 is an abundant number, since it is smaller than the sum of its proper divisors (11645240).

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

8788720 is a wasteful number, since it uses less digits than its factorization.

8788720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109872 (or 109866 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 8788720 is about 2964.5775415732. The cubic root of 8788720 is about 206.3677723453.

The spelling of 8788720 in words is "eight million, seven hundred eighty-eight thousand, seven hundred twenty".