6711649 has 4 divisors (see below), whose sum is σ = 7670464. Its totient is φ = 5752836.

The previous prime is 6711643. The next prime is 6711667. The reversal of 6711649 is 9461176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6711649 - 2³ = 6711641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6711641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 479397 + ... + 479410.

It is an arithmetic number, because the mean of its divisors is an integer number (1917616).

Almost surely, 2^6711649 is an apocalyptic number.

It is an amenable number.

6711649 is a deficient number, since it is larger than the sum of its proper divisors (958815).

6711649 is an equidigital number, since it uses as much as digits as its factorization.

6711649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958814.

The product of its digits is 9072, while the sum is 34.

The square root of 6711649 is about 2590.6850445394. The cubic root of 6711649 is about 188.6295572413.

The spelling of 6711649 in words is "six million, seven hundred eleven thousand, six hundred forty-nine".