6386887 has 4 divisors (see below), whose sum is σ = 6878200. Its totient is φ = 5895576.

The previous prime is 6386839. The next prime is 6386923. The reversal of 6386887 is 7886836.

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

It is a cyclic number.

It is not a de Polignac number, because 6386887 - 2¹⁵ = 6354119 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 (6386687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245637 + ... + 245662.

It is an arithmetic number, because the mean of its divisors is an integer number (1719550).

Almost surely, 2^6386887 is an apocalyptic number.

6386887 is a deficient number, since it is larger than the sum of its proper divisors (491313).

6386887 is a wasteful number, since it uses less digits than its factorization.

6386887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491312.

The product of its digits is 387072, while the sum is 46.

The square root of 6386887 is about 2527.2291150586. The cubic root of 6386887 is about 185.5366642388.

The spelling of 6386887 in words is "six million, three hundred eighty-six thousand, eight hundred eighty-seven".