6413985 has 24 divisors (see below), whose sum is σ = 11531520. Its totient is φ = 3420144.

The previous prime is 6413983. The next prime is 6414013. The reversal of 6413985 is 5893146.

6413985 is a `hidden beast` number, since 641 + 3 + 9 + 8 + 5 = 666.

It is not a de Polignac number, because 6413985 - 2¹ = 6413983 is a prime.

It is a super-2 number, since 2×6413985² = 82278407160450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6413983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1425 + ... + 3854.

It is an arithmetic number, because the mean of its divisors is an integer number (480480).

Almost surely, 2^6413985 is an apocalyptic number.

It is an amenable number.

6413985 is a deficient number, since it is larger than the sum of its proper divisors (5117535).

6413985 is an equidigital number, since it uses as much as digits as its factorization.

6413985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5299 (or 5287 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 6413985 is about 2532.5846481411. The cubic root of 6413985 is about 185.7986895857.

The spelling of 6413985 in words is "six million, four hundred thirteen thousand, nine hundred eighty-five".