8087920 has 80 divisors (see below), whose sum is σ = 21025440. Its totient is φ = 2875392.

The previous prime is 8087917. The next prime is 8087921. The reversal of 8087920 is 297808.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8087921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25684 + ... + 25996.

It is an arithmetic number, because the mean of its divisors is an integer number (262818).

Almost surely, 2^8087920 is an apocalyptic number.

8087920 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 8087920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10512720).

8087920 is an abundant number, since it is smaller than the sum of its proper divisors (12937520).

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

8087920 is a wasteful number, since it uses less digits than its factorization.

8087920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 8087920 is about 2843.9268626320. The cubic root of 8087920 is about 200.7299989327.

The spelling of 8087920 in words is "eight million, eighty-seven thousand, nine hundred twenty".