3143987 has 24 divisors (see below), whose sum is σ = 4213440. Its totient is φ = 2313360.

The previous prime is 3143969. The next prime is 3143993. The reversal of 3143987 is 7893413.

It is not a de Polignac number, because 3143987 - 2⁸ = 3143731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3143087) 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, 10088 + ... + 10394.

It is an arithmetic number, because the mean of its divisors is an integer number (175560).

Almost surely, 2^3143987 is an apocalyptic number.

3143987 is a deficient number, since it is larger than the sum of its proper divisors (1069453).

3143987 is a wasteful number, since it uses less digits than its factorization.

3143987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 344 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 3143987 is about 1773.1291549123. The cubic root of 3143987 is about 146.4963869781.

The spelling of 3143987 in words is "three million, one hundred forty-three thousand, nine hundred eighty-seven".