6231987 has 12 divisors (see below), whose sum is σ = 9023560. Its totient is φ = 4144608.

The previous prime is 6231949. The next prime is 6232043. The reversal of 6231987 is 7891326.

It is not a de Polignac number, because 6231987 - 2⁷ = 6231859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6231187) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6183 + ... + 7119.

Almost surely, 2^6231987 is an apocalyptic number.

6231987 is a deficient number, since it is larger than the sum of its proper divisors (2791573).

6231987 is a wasteful number, since it uses less digits than its factorization.

6231987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682 (or 1679 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 6231987 is about 2496.3948005073. The cubic root of 6231987 is about 184.0244434288.

The spelling of 6231987 in words is "six million, two hundred thirty-one thousand, nine hundred eighty-seven".