6138687 has 8 divisors (see below), whose sum is σ = 8196400. Its totient is φ = 4086720.

The previous prime is 6138673. The next prime is 6138689. The reversal of 6138687 is 7868316.

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

It is not a de Polignac number, because 6138687 - 2¹⁵ = 6105919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6138689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3189 + ... + 4737.

It is an arithmetic number, because the mean of its divisors is an integer number (1024550).

Almost surely, 2^6138687 is an apocalyptic number.

6138687 is a deficient number, since it is larger than the sum of its proper divisors (2057713).

6138687 is a wasteful number, since it uses less digits than its factorization.

6138687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873.

The product of its digits is 48384, while the sum is 39.

The square root of 6138687 is about 2477.6373826692. The cubic root of 6138687 is about 183.1014696010.

The spelling of 6138687 in words is "six million, one hundred thirty-eight thousand, six hundred eighty-seven".