6740636 has 48 divisors (see below), whose sum is σ = 14616000. Its totient is φ = 2718912.

The previous prime is 6740597. The next prime is 6740647. The reversal of 6740636 is 6360476.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a congruent number.

It is an unprimeable number.

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, 396500 + ... + 396516.

It is an arithmetic number, because the mean of its divisors is an integer number (304500).

Almost surely, 2^6740636 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 6740636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7308000).

6740636 is an abundant number, since it is smaller than the sum of its proper divisors (7875364).

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

6740636 is an equidigital number, since it uses as much as digits as its factorization.

6740636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 26 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 6740636 is about 2596.2734832833. The cubic root of 6740636 is about 188.9007251842.

The spelling of 6740636 in words is "six million, seven hundred forty thousand, six hundred thirty-six".