6387873 has 4 divisors (see below), whose sum is σ = 8517168. Its totient is φ = 4258580.

The previous prime is 6387863. The next prime is 6387877. The reversal of 6387873 is 3787836.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6387873 is a prime.

It is a D-number.

6387873 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6387877) 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, 1064643 + ... + 1064648.

It is an arithmetic number, because the mean of its divisors is an integer number (2129292).

Almost surely, 2^6387873 is an apocalyptic number.

It is an amenable number.

6387873 is a deficient number, since it is larger than the sum of its proper divisors (2129295).

6387873 is a wasteful number, since it uses less digits than its factorization.

6387873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129294.

The product of its digits is 169344, while the sum is 42.

The square root of 6387873 is about 2527.4241828391. The cubic root of 6387873 is about 185.5462113905.

It can be divided in two parts, 6387 and 873, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 6387873 in words is "six million, three hundred eighty-seven thousand, eight hundred seventy-three".