6386693 has 4 divisors (see below), whose sum is σ = 6542508. Its totient is φ = 6230880.

The previous prime is 6386687. The next prime is 6386711. The reversal of 6386693 is 3966836.

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

It can be written as a sum of positive squares in 2 ways, for example, as 850084 + 5536609 = 922^2 + 2353^2 .

It is a cyclic number.

It is not a de Polignac number, because 6386693 - 2¹⁶ = 6321157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 155773 = 6386693 / (6 + 3 + 8 + 6 + 6 + 9 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6386693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6386623) 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, 77846 + ... + 77927.

It is an arithmetic number, because the mean of its divisors is an integer number (1635627).

Almost surely, 2^6386693 is an apocalyptic number.

It is an amenable number.

6386693 is a deficient number, since it is larger than the sum of its proper divisors (155815).

6386693 is a wasteful number, since it uses less digits than its factorization.

6386693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155814.

The product of its digits is 139968, while the sum is 41.

The square root of 6386693 is about 2527.1907328099. The cubic root of 6386693 is about 185.5347856774.

The spelling of 6386693 in words is "six million, three hundred eighty-six thousand, six hundred ninety-three".