6711381 has 6 divisors (see below), whose sum is σ = 9694230. Its totient is φ = 4474248.

The previous prime is 6711371. The next prime is 6711391. The reversal of 6711381 is 1831176.

It is an interprime number because it is at equal distance from previous prime (6711371) and next prime (6711391).

It can be written as a sum of positive squares in only one way, i.e., 6426225 + 285156 = 2535^2 + 534^2 .

It is not a de Polignac number, because 6711381 - 2⁶ = 6711317 is a prime.

It is a super-2 number, since 2×6711381² = 90085269854322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6711301) 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 5 ways as a sum of consecutive naturals, for example, 372846 + ... + 372863.

It is an arithmetic number, because the mean of its divisors is an integer number (1615705).

Almost surely, 2^6711381 is an apocalyptic number.

It is an amenable number.

6711381 is a deficient number, since it is larger than the sum of its proper divisors (2982849).

6711381 is a wasteful number, since it uses less digits than its factorization.

6711381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745715 (or 745712 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 6711381 is about 2590.6333202520. The cubic root of 6711381 is about 188.6270465124.

The spelling of 6711381 in words is "six million, seven hundred eleven thousand, three hundred eighty-one".