6389655 has 8 divisors (see below), whose sum is σ = 10223472. Its totient is φ = 3407808.

The previous prime is 6389629. The next prime is 6389683. The reversal of 6389655 is 5569836.

6389655 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6389655 - 2⁵ = 6389623 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212974 + ... + 213003.

It is an arithmetic number, because the mean of its divisors is an integer number (1277934).

Almost surely, 2^6389655 is an apocalyptic number.

6389655 is a deficient number, since it is larger than the sum of its proper divisors (3833817).

6389655 is a wasteful number, since it uses less digits than its factorization.

6389655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425985.

The product of its digits is 194400, while the sum is 42.

The square root of 6389655 is about 2527.7766910865. The cubic root of 6389655 is about 185.5634634872.

The spelling of 6389655 in words is "six million, three hundred eighty-nine thousand, six hundred fifty-five".