3243009 has 32 divisors (see below), whose sum is σ = 5483520. Its totient is φ = 1656000.

The previous prime is 3243007. The next prime is 3243043. The reversal of 3243009 is 9003423.

It is not a de Polignac number, because 3243009 - 2¹ = 3243007 is a prime.

It is a super-3 number, since 3×3243009³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (3243007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23262 + ... + 23400.

It is an arithmetic number, because the mean of its divisors is an integer number (171360).

Almost surely, 2^3243009 is an apocalyptic number.

It is an amenable number.

3243009 is a deficient number, since it is larger than the sum of its proper divisors (2240511).

3243009 is a wasteful number, since it uses less digits than its factorization.

3243009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 3243009 is about 1800.8356393630. The cubic root of 3243009 is about 148.0185178923.

It can be divided in two parts, 324 and 3009, that added together give a palindrome (3333).

The spelling of 3243009 in words is "three million, two hundred forty-three thousand, nine".