3984185 has 8 divisors (see below), whose sum is σ = 4792776. Its totient is φ = 3179520.

The previous prime is 3984181. The next prime is 3984191. The reversal of 3984185 is 5814893.

It can be written as a sum of positive squares in 4 ways, for example, as 1459264 + 2524921 = 1208^2 + 1589^2 .

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

It is not a de Polignac number, because 3984185 - 2² = 3984181 is a prime.

It is a super-2 number, since 2×3984185² = 31747460228450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3984181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2195 + ... + 3575.

It is an arithmetic number, because the mean of its divisors is an integer number (599097).

Almost surely, 2^3984185 is an apocalyptic number.

It is an amenable number.

3984185 is a deficient number, since it is larger than the sum of its proper divisors (808591).

3984185 is a wasteful number, since it uses less digits than its factorization.

3984185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963.

The product of its digits is 34560, while the sum is 38.

The square root of 3984185 is about 1996.0423342204. The cubic root of 3984185 is about 158.5306226429.

The spelling of 3984185 in words is "three million, nine hundred eighty-four thousand, one hundred eighty-five".