6715240 has 64 divisors (see below), whose sum is σ = 17884800. Its totient is φ = 2220288.

The previous prime is 6715231. The next prime is 6715249. The reversal of 6715240 is 425176.

It is an interprime number because it is at equal distance from previous prime (6715231) and next prime (6715249).

It is not an unprimeable number, because it can be changed into a prime (6715249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7707 + ... + 8533.

It is an arithmetic number, because the mean of its divisors is an integer number (279450).

Almost surely, 2^6715240 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 6715240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8942400).

6715240 is an abundant number, since it is smaller than the sum of its proper divisors (11169560).

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

6715240 is a wasteful number, since it uses less digits than its factorization.

6715240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 6715240 is about 2591.3780117922. The cubic root of 6715240 is about 188.6631926897.

Subtracting from 6715240 its reverse (425176), we obtain a square (6290064 = 2508²).

The spelling of 6715240 in words is "six million, seven hundred fifteen thousand, two hundred forty".