6389938 has 8 divisors (see below), whose sum is σ = 9608940. Its totient is φ = 3186960.

The previous prime is 6389917. The next prime is 6389941. The reversal of 6389938 is 8399836.

It can be written as a sum of positive squares in 2 ways, for example, as 3775249 + 2614689 = 1943^2 + 1617^2 .

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

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, 2953 + ... + 4636.

Almost surely, 2^6389938 is an apocalyptic number.

6389938 is a deficient number, since it is larger than the sum of its proper divisors (3219002).

6389938 is a wasteful number, since it uses less digits than its factorization.

6389938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8012.

The product of its digits is 279936, while the sum is 46.

The square root of 6389938 is about 2527.8326685127. The cubic root of 6389938 is about 185.5662030031.

The spelling of 6389938 in words is "six million, three hundred eighty-nine thousand, nine hundred thirty-eight".