8716440 has 64 divisors (see below), whose sum is σ = 27532800. Its totient is φ = 2201472.

The previous prime is 8716439. The next prime is 8716441. The reversal of 8716440 is 446178.

It is an interprime number because it is at equal distance from previous prime (8716439) and next prime (8716441).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 8716398 and 8716407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8716441) 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, 369 + ... + 4191.

It is an arithmetic number, because the mean of its divisors is an integer number (430200).

Almost surely, 2^8716440 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 8716440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13766400).

8716440 is an abundant number, since it is smaller than the sum of its proper divisors (18816360).

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

8716440 is a wasteful number, since it uses less digits than its factorization.

8716440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3856 (or 3852 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 8716440 is about 2952.3617664507. The cubic root of 8716440 is about 205.8004792021.

The spelling of 8716440 in words is "eight million, seven hundred sixteen thousand, four hundred forty".