3995187 has 48 divisors (see below), whose sum is σ = 7022592. Its totient is φ = 1969920.

The previous prime is 3995183. The next prime is 3995191. The reversal of 3995187 is 7815993.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3995183) and next prime (3995191).

It is not a de Polignac number, because 3995187 - 2² = 3995183 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3995183) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128862 + ... + 128892.

It is an arithmetic number, because the mean of its divisors is an integer number (146304).

Almost surely, 2^3995187 is an apocalyptic number.

3995187 is a deficient number, since it is larger than the sum of its proper divisors (3027405).

3995187 is a wasteful number, since it uses less digits than its factorization.

3995187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 77 counting only the distinct ones).

The product of its digits is 68040, while the sum is 42.

The square root of 3995187 is about 1998.7963878294. The cubic root of 3995187 is about 158.6764116330.

The spelling of 3995187 in words is "three million, nine hundred ninety-five thousand, one hundred eighty-seven".