6706540 has 48 divisors (see below), whose sum is σ = 15079680. Its totient is φ = 2499840.

The previous prime is 6706537. The next prime is 6706543. The reversal of 6706540 is 456076.

It is an interprime number because it is at equal distance from previous prime (6706537) and next prime (6706543).

It is a junction number, because it is equal to n+sod(n) for n = 6706499 and 6706508.

It is not an unprimeable number, because it can be changed into a prime (6706543) 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, 17794 + ... + 18166.

It is an arithmetic number, because the mean of its divisors is an integer number (314160).

Almost surely, 2^6706540 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 6706540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7539840).

6706540 is an abundant number, since it is smaller than the sum of its proper divisors (8373140).

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

6706540 is a wasteful number, since it uses less digits than its factorization.

6706540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 6706540 is about 2589.6988241879. The cubic root of 6706540 is about 188.5816826161.

The spelling of 6706540 in words is "six million, seven hundred six thousand, five hundred forty".