3873987 has 30 divisors (see below), whose sum is σ = 6288612. Its totient is φ = 2375568.

The previous prime is 3873983. The next prime is 3873997. The reversal of 3873987 is 7893783.

It is not a de Polignac number, because 3873987 - 2² = 3873983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3873983) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 13548 + ... + 13830.

Almost surely, 2^3873987 is an apocalyptic number.

3873987 is a deficient number, since it is larger than the sum of its proper divisors (2414625).

3873987 is a wasteful number, since it uses less digits than its factorization.

3873987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 299 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 3873987 is about 1968.2446494275. The cubic root of 3873987 is about 157.0553444650.

The spelling of 3873987 in words is "three million, eight hundred seventy-three thousand, nine hundred eighty-seven".