6383985 has 16 divisors (see below), whose sum is σ = 10544640. Its totient is φ = 3294720.

The previous prime is 6383983. The next prime is 6383989. The reversal of 6383985 is 5893836.

6383985 = T₂₀₆ + T₂₀₇ + ... + T₃₆₀.

It is not a de Polignac number, because 6383985 - 2¹ = 6383983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6383983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6400 + ... + 7329.

It is an arithmetic number, because the mean of its divisors is an integer number (659040).

Almost surely, 2^6383985 is an apocalyptic number.

It is an amenable number.

6383985 is a deficient number, since it is larger than the sum of its proper divisors (4160655).

6383985 is a wasteful number, since it uses less digits than its factorization.

6383985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13768.

The product of its digits is 155520, while the sum is 42.

The square root of 6383985 is about 2526.6549032268. The cubic root of 6383985 is about 185.5085593123.

It can be divided in two parts, 63 and 83985, that added together give a palindrome (84048).

The spelling of 6383985 in words is "six million, three hundred eighty-three thousand, nine hundred eighty-five".