6746647 has 4 divisors (see below), whose sum is σ = 6979320. Its totient is φ = 6513976.

The previous prime is 6746639. The next prime is 6746651. The reversal of 6746647 is 7466476.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6746647 - 2³ = 6746639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6746627) 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 3 ways as a sum of consecutive naturals, for example, 116293 + ... + 116350.

It is an arithmetic number, because the mean of its divisors is an integer number (1744830).

Almost surely, 2^6746647 is an apocalyptic number.

6746647 is a deficient number, since it is larger than the sum of its proper divisors (232673).

6746647 is a wasteful number, since it uses less digits than its factorization.

6746647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232672.

The product of its digits is 169344, while the sum is 40.

The square root of 6746647 is about 2597.4308460477. The cubic root of 6746647 is about 188.9568595956.

The spelling of 6746647 in words is "six million, seven hundred forty-six thousand, six hundred forty-seven".