8715840 has 112 divisors (see below), whose sum is σ = 31650432. Its totient is φ = 1990656.

The previous prime is 8715793. The next prime is 8715841. The reversal of 8715840 is 485178.

It is a happy number.

8715840 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (8715841) 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, 6072 + ... + 7368.

Almost surely, 2^8715840 is an apocalyptic number.

8715840 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 8715840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15825216).

8715840 is an abundant number, since it is smaller than the sum of its proper divisors (22934592).

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

8715840 is a wasteful number, since it uses less digits than its factorization.

8715840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 8715840 is about 2952.2601511384. The cubic root of 8715840 is about 205.7957569714.

The spelling of 8715840 in words is "eight million, seven hundred fifteen thousand, eight hundred forty".