3243646 has 16 divisors (see below), whose sum is σ = 5583744. Its totient is φ = 1384344.

The previous prime is 3243637. The next prime is 3243649. The reversal of 3243646 is 6463423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5941 + ... + 6463.

It is an arithmetic number, because the mean of its divisors is an integer number (348984).

Almost surely, 2^3243646 is an apocalyptic number.

3243646 is a deficient number, since it is larger than the sum of its proper divisors (2340098).

3243646 is a wasteful number, since it uses less digits than its factorization.

3243646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975.

The product of its digits is 10368, while the sum is 28.

The square root of 3243646 is about 1801.0124930161. The cubic root of 3243646 is about 148.0282086480.

The spelling of 3243646 in words is "three million, two hundred forty-three thousand, six hundred forty-six".