3231009 has 20 divisors (see below), whose sum is σ = 4883076. Its totient is φ = 2128896.

The previous prime is 3231001. The next prime is 3231023. The reversal of 3231009 is 9001323.

It can be written as a sum of positive squares in 2 ways, for example, as 518400 + 2712609 = 720^2 + 1647^2 .

It is not a de Polignac number, because 3231009 - 2³ = 3231001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3230982 and 3231000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8977 + ... + 9329.

Almost surely, 2^3231009 is an apocalyptic number.

It is an amenable number.

3231009 is a deficient number, since it is larger than the sum of its proper divisors (1652067).

3231009 is a wasteful number, since it uses less digits than its factorization.

3231009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 3231009 is about 1797.5007649512. The cubic root of 3231009 is about 147.8357228850.

The spelling of 3231009 in words is "three million, two hundred thirty-one thousand, nine".