3243987 has 12 divisors (see below), whose sum is σ = 4786080. Its totient is φ = 2116368.

The previous prime is 3243983. The next prime is 3244001. The reversal of 3243987 is 7893423.

It is not a de Polignac number, because 3243987 - 2² = 3243983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243983) 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, 3412 + ... + 4257.

It is an arithmetic number, because the mean of its divisors is an integer number (398840).

Almost surely, 2^3243987 is an apocalyptic number.

3243987 is a deficient number, since it is larger than the sum of its proper divisors (1542093).

3243987 is a wasteful number, since it uses less digits than its factorization.

3243987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7722 (or 7719 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 3243987 is about 1801.1071594994. The cubic root of 3243987 is about 148.0333957995.

The spelling of 3243987 in words is "three million, two hundred forty-three thousand, nine hundred eighty-seven".