3204289 has 4 divisors (see below), whose sum is σ = 3495600. Its totient is φ = 2912980.

The previous prime is 3204283. The next prime is 3204307. The reversal of 3204289 is 9824023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9824023 = 11 ⋅893093.

It is a cyclic number.

It is not a de Polignac number, because 3204289 - 2³ = 3204281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3204281) 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, 145639 + ... + 145660.

It is an arithmetic number, because the mean of its divisors is an integer number (873900).

Almost surely, 2^3204289 is an apocalyptic number.

It is an amenable number.

3204289 is a deficient number, since it is larger than the sum of its proper divisors (291311).

3204289 is a wasteful number, since it uses less digits than its factorization.

3204289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291310.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 3204289 is about 1790.0527925176. The cubic root of 3204289 is about 147.4270672665.

It can be divided in two parts, 32042 and 89, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 3204289 in words is "three million, two hundred four thousand, two hundred eighty-nine".