6715540 has 48 divisors (see below), whose sum is σ = 15861888. Its totient is φ = 2369664.

The previous prime is 6715523. The next prime is 6715567. The reversal of 6715540 is 455176.

It is a junction number, because it is equal to n+sod(n) for n = 6715499 and 6715508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5419 + ... + 6541.

It is an arithmetic number, because the mean of its divisors is an integer number (330456).

Almost surely, 2^6715540 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 6715540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7930944).

6715540 is an abundant number, since it is smaller than the sum of its proper divisors (9146348).

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

6715540 is a wasteful number, since it uses less digits than its factorization.

6715540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168 (or 1166 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 6715540 is about 2591.4358954063. The cubic root of 6715540 is about 188.6660021258. Note that the first 3 decimals are identical.

The spelling of 6715540 in words is "six million, seven hundred fifteen thousand, five hundred forty".