6938878 has 8 divisors (see below), whose sum is σ = 10500768. Its totient is φ = 3438624.

The previous prime is 6938861. The next prime is 6938891. The reversal of 6938878 is 8788396.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15126 + ... + 15577.

It is an arithmetic number, because the mean of its divisors is an integer number (1312596).

Almost surely, 2^6938878 is an apocalyptic number.

6938878 is a deficient number, since it is larger than the sum of its proper divisors (3561890).

6938878 is a wasteful number, since it uses less digits than its factorization.

6938878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30818.

The product of its digits is 580608, while the sum is 49.

The square root of 6938878 is about 2634.1750131683. The cubic root of 6938878 is about 190.7347175600.

The spelling of 6938878 in words is "six million, nine hundred thirty-eight thousand, eight hundred seventy-eight".