6878090 has 8 divisors (see below), whose sum is σ = 12380580. Its totient is φ = 2751232.

The previous prime is 6878089. The next prime is 6878093. The reversal of 6878090 is 908786.

It can be written as a sum of positive squares in 2 ways, for example, as 6497401 + 380689 = 2549^2 + 617^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6878093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343895 + ... + 343914.

Almost surely, 2^6878090 is an apocalyptic number.

6878090 is a deficient number, since it is larger than the sum of its proper divisors (5502490).

6878090 is a wasteful number, since it uses less digits than its factorization.

6878090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687816.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 6878090 is about 2622.6112941113. The cubic root of 6878090 is about 190.1761063423.

The spelling of 6878090 in words is "six million, eight hundred seventy-eight thousand, ninety".