6887938 has 4 divisors (see below), whose sum is σ = 10331910. Its totient is φ = 3443968.

The previous prime is 6887929. The next prime is 6887953. The reversal of 6887938 is 8397886.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6640929 + 247009 = 2577^2 + 497^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6887891 and 6887900.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1721983 + ... + 1721986.

Almost surely, 2^6887938 is an apocalyptic number.

6887938 is a deficient number, since it is larger than the sum of its proper divisors (3443972).

6887938 is a wasteful number, since it uses less digits than its factorization.

6887938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3443971.

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

The square root of 6887938 is about 2624.4881405714. The cubic root of 6887938 is about 190.2668273206.

The spelling of 6887938 in words is "six million, eight hundred eighty-seven thousand, nine hundred thirty-eight".