3243506 has 24 divisors (see below), whose sum is σ = 5909760. Its totient is φ = 1328712.

The previous prime is 3243497. The next prime is 3243511. The reversal of 3243506 is 6053423.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1535 + ... + 2973.

It is an arithmetic number, because the mean of its divisors is an integer number (246240).

Almost surely, 2^3243506 is an apocalyptic number.

3243506 is a deficient number, since it is larger than the sum of its proper divisors (2666254).

3243506 is a wasteful number, since it uses less digits than its factorization.

3243506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478 (or 1471 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 3243506 is about 1800.9736255703. The cubic root of 3243506 is about 148.0260789203.

Adding to 3243506 its reverse (6053423), we get a palindrome (9296929).

The spelling of 3243506 in words is "three million, two hundred forty-three thousand, five hundred six".