8119720 has 64 divisors (see below), whose sum is σ = 21358080. Its totient is φ = 2720256.

The previous prime is 8119711. The next prime is 8119721. The reversal of 8119720 is 279118.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (8119721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12852 + ... + 13468.

It is an arithmetic number, because the mean of its divisors is an integer number (333720).

Almost surely, 2^8119720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8119720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10679040).

8119720 is an abundant number, since it is smaller than the sum of its proper divisors (13238360).

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

8119720 is a wasteful number, since it uses less digits than its factorization.

8119720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 8119720 is about 2849.5122389630. The cubic root of 8119720 is about 200.9927309401.

The spelling of 8119720 in words is "eight million, one hundred nineteen thousand, seven hundred twenty".