6881936 has 10 divisors (see below), whose sum is σ = 13333782. Its totient is φ = 3440960.

The previous prime is 6881893. The next prime is 6881939. The reversal of 6881936 is 6391886.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6451600 + 430336 = 2540^2 + 656^2 .

It is a super-2 number, since 2×6881936² = 94722086216192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6881893 and 6881902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6881939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215045 + ... + 215076.

Almost surely, 2^6881936 is an apocalyptic number.

It is an amenable number.

6881936 is a deficient number, since it is larger than the sum of its proper divisors (6451846).

6881936 is a wasteful number, since it uses less digits than its factorization.

6881936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430129 (or 430123 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 6881936 is about 2623.3444303027. The cubic root of 6881936 is about 190.2115464630.

The spelling of 6881936 in words is "six million, eight hundred eighty-one thousand, nine hundred thirty-six".