6138986 has 8 divisors (see below), whose sum is σ = 10524000. Its totient is φ = 2630988.

The previous prime is 6138983. The next prime is 6138991. The reversal of 6138986 is 6898316.

It is a happy number.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6138983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219236 + ... + 219263.

It is an arithmetic number, because the mean of its divisors is an integer number (1315500).

Almost surely, 2^6138986 is an apocalyptic number.

6138986 is a deficient number, since it is larger than the sum of its proper divisors (4385014).

6138986 is a wasteful number, since it uses less digits than its factorization.

6138986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438508.

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

The square root of 6138986 is about 2477.6977216763. The cubic root of 6138986 is about 183.1044423568.

The spelling of 6138986 in words is "six million, one hundred thirty-eight thousand, nine hundred eighty-six".