3985187 has 8 divisors (see below), whose sum is σ = 4187904. Its totient is φ = 3784968.

The previous prime is 3985181. The next prime is 3985207. The reversal of 3985187 is 7815893.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3985187 - 2²⁰ = 2936611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3985181) 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, 3218 + ... + 4280.

It is an arithmetic number, because the mean of its divisors is an integer number (523488).

Almost surely, 2^3985187 is an apocalyptic number.

3985187 is a deficient number, since it is larger than the sum of its proper divisors (202717).

3985187 is a wasteful number, since it uses less digits than its factorization.

3985187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249.

The product of its digits is 60480, while the sum is 41.

The square root of 3985187 is about 1996.2933151218. The cubic root of 3985187 is about 158.5439113807.

The spelling of 3985187 in words is "three million, nine hundred eighty-five thousand, one hundred eighty-seven".