6881604 has 48 divisors (see below), whose sum is σ = 16765056. Its totient is φ = 2195200.

The previous prime is 6881603. The next prime is 6881639. The reversal of 6881604 is 4061886.

It is a super-2 number, since 2×6881604² = 94712947225632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6881603) 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 in 15 ways as a sum of consecutive naturals, for example, 34834 + ... + 35030.

It is an arithmetic number, because the mean of its divisors is an integer number (349272).

Almost surely, 2^6881604 is an apocalyptic number.

It is an amenable number.

6881604 is an abundant number, since it is smaller than the sum of its proper divisors (9883452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6881604 is a wasteful number, since it uses less digits than its factorization.

6881604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 6881604 is about 2623.2811515352. The cubic root of 6881604 is about 190.2084876702.

The spelling of 6881604 in words is "six million, eight hundred eighty-one thousand, six hundred four".