6717240 has 96 divisors (see below), whose sum is σ = 22351680. Its totient is φ = 1748736.

The previous prime is 6717229. The next prime is 6717281. The reversal of 6717240 is 427176.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16722 + ... + 17118.

It is an arithmetic number, because the mean of its divisors is an integer number (232830).

Almost surely, 2^6717240 is an apocalyptic number.

6717240 is a gapful number since it is divisible by the number (60) 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 6717240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11175840).

6717240 is an abundant number, since it is smaller than the sum of its proper divisors (15634440).

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

6717240 is a wasteful number, since it uses less digits than its factorization.

6717240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 6717240 is about 2591.7638781340. The cubic root of 6717240 is about 188.6819206841.

Subtracting from 6717240 its reverse (427176), we obtain a square (6290064 = 2508²).

The spelling of 6717240 in words is "six million, seven hundred seventeen thousand, two hundred forty".