8759840 has 48 divisors (see below), whose sum is σ = 21106008. Its totient is φ = 3434496.

The previous prime is 8759837. The next prime is 8759843. The reversal of 8759840 is 489578.

It is an interprime number because it is at equal distance from previous prime (8759837) and next prime (8759843).

It can be written as a sum of positive squares in 4 ways, for example, as 8737936 + 21904 = 2956^2 + 148^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8759843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7964 + ... + 8996.

Almost surely, 2^8759840 is an apocalyptic number.

8759840 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 8759840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10553004).

8759840 is an abundant number, since it is smaller than the sum of its proper divisors (12346168).

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

8759840 is a wasteful number, since it uses less digits than its factorization.

8759840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101 (or 1093 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 8759840 is about 2959.7026877712. The cubic root of 8759840 is about 206.1414807144.

The spelling of 8759840 in words is "eight million, seven hundred fifty-nine thousand, eight hundred forty".