6861938 has 8 divisors (see below), whose sum is σ = 10308060. Its totient is φ = 3425920.

The previous prime is 6861923. The next prime is 6861947. The reversal of 6861938 is 8391686.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5004169 + 1857769 = 2237^2 + 1363^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 6861895 and 6861904.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 503 + ... + 3738.

Almost surely, 2^6861938 is an apocalyptic number.

6861938 is a deficient number, since it is larger than the sum of its proper divisors (3446122).

6861938 is a wasteful number, since it uses less digits than its factorization.

6861938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052.

The product of its digits is 62208, while the sum is 41.

The square root of 6861938 is about 2619.5301105351. The cubic root of 6861938 is about 190.0271244747.

The spelling of 6861938 in words is "six million, eight hundred sixty-one thousand, nine hundred thirty-eight".