6309985 has 16 divisors (see below), whose sum is σ = 8439552. Its totient is φ = 4489600.

The previous prime is 6309973. The next prime is 6309997. The reversal of 6309985 is 5899036.

6309985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6309973) and next prime (6309997).

It is not a de Polignac number, because 6309985 - 2⁷ = 6309857 is a prime.

6309985 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1365 + ... + 3805.

It is an arithmetic number, because the mean of its divisors is an integer number (527472).

Almost surely, 2^6309985 is an apocalyptic number.

It is an amenable number.

6309985 is a deficient number, since it is larger than the sum of its proper divisors (2129567).

6309985 is a wasteful number, since it uses less digits than its factorization.

6309985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 6309985 is about 2511.9683517115. The cubic root of 6309985 is about 184.7889973179.

The spelling of 6309985 in words is "six million, three hundred nine thousand, nine hundred eighty-five".