6711631 has 4 divisors (see below), whose sum is σ = 6741952. Its totient is φ = 6681312.

The previous prime is 6711587. The next prime is 6711637. The reversal of 6711631 is 1361176.

It is a happy number.

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 6711631 - 2⁹ = 6711119 is a prime.

It is a super-2 number, since 2×6711631² = 90091981360322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6711596 and 6711605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6711637) 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, 14826 + ... + 15271.

It is an arithmetic number, because the mean of its divisors is an integer number (1685488).

Almost surely, 2^6711631 is an apocalyptic number.

6711631 is a deficient number, since it is larger than the sum of its proper divisors (30321).

6711631 is a wasteful number, since it uses less digits than its factorization.

6711631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30320.

The product of its digits is 756, while the sum is 25.

The square root of 6711631 is about 2590.6815705524. The cubic root of 6711631 is about 188.6293886124.

The spelling of 6711631 in words is "six million, seven hundred eleven thousand, six hundred thirty-one".