6386243 has 4 divisors (see below), whose sum is σ = 6428688. Its totient is φ = 6343800.

The previous prime is 6386227. The next prime is 6386257. The reversal of 6386243 is 3426836.

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 6386243 - 2⁴ = 6386227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6386143) 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, 20996 + ... + 21297.

It is an arithmetic number, because the mean of its divisors is an integer number (1607172).

Almost surely, 2^6386243 is an apocalyptic number.

6386243 is a deficient number, since it is larger than the sum of its proper divisors (42445).

6386243 is a wasteful number, since it uses less digits than its factorization.

6386243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42444.

The product of its digits is 20736, while the sum is 32.

The square root of 6386243 is about 2527.1016995760. The cubic root of 6386243 is about 185.5304280433.

The spelling of 6386243 in words is "six million, three hundred eighty-six thousand, two hundred forty-three".