6878408 has 8 divisors (see below), whose sum is σ = 12897030. Its totient is φ = 3439200.

The previous prime is 6878407. The next prime is 6878413. The reversal of 6878408 is 8048786.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6646084 + 232324 = 2578^2 + 482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×6878408² = 94624993228928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6878401) 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 as a sum of consecutive naturals, namely, 429893 + ... + 429908.

Almost surely, 2^6878408 is an apocalyptic number.

It is an amenable number.

6878408 is a deficient number, since it is larger than the sum of its proper divisors (6018622).

6878408 is a wasteful number, since it uses less digits than its factorization.

6878408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859807 (or 859803 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 6878408 is about 2622.6719200083. The cubic root of 6878408 is about 190.1790371497.

The spelling of 6878408 in words is "six million, eight hundred seventy-eight thousand, four hundred eight".