3243687 has 4 divisors (see below), whose sum is σ = 4324920. Its totient is φ = 2162456.

The previous prime is 3243683. The next prime is 3243697. The reversal of 3243687 is 7863423.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3243687 - 2² = 3243683 is a prime.

It is a D-number.

3243687 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540612 + ... + 540617.

It is an arithmetic number, because the mean of its divisors is an integer number (1081230).

Almost surely, 2^3243687 is an apocalyptic number.

3243687 is a deficient number, since it is larger than the sum of its proper divisors (1081233).

3243687 is a wasteful number, since it uses less digits than its factorization.

3243687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081232.

The product of its digits is 24192, while the sum is 33.

The square root of 3243687 is about 1801.0238754664. The cubic root of 3243687 is about 148.0288323423.

It can be divided in two parts, 32436 and 87, that added together give a palindrome (32523).

The spelling of 3243687 in words is "three million, two hundred forty-three thousand, six hundred eighty-seven".