6740447 has 4 divisors (see below), whose sum is σ = 7703376. Its totient is φ = 5777520.

The previous prime is 6740443. The next prime is 6740471. The reversal of 6740447 is 7440476.

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

It is not a de Polignac number, because 6740447 - 2² = 6740443 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 (6740443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481454 + ... + 481467.

It is an arithmetic number, because the mean of its divisors is an integer number (1925844).

Almost surely, 2^6740447 is an apocalyptic number.

6740447 is a deficient number, since it is larger than the sum of its proper divisors (962929).

6740447 is an equidigital number, since it uses as much as digits as its factorization.

6740447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962928.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 6740447 is about 2596.2370847055. The cubic root of 6740447 is about 188.8989596450.

The spelling of 6740447 in words is "six million, seven hundred forty thousand, four hundred forty-seven".