3204389 has 2 divisors, whose sum is σ = 3204390. Its totient is φ = 3204388.

The previous prime is 3204373. The next prime is 3204401. The reversal of 3204389 is 9834023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3204100 + 289 = 1790^2 + 17^2 .

It is an emirp because it is prime and its reverse (9834023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3204389 - 2⁴ = 3204373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3204689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1602194 + 1602195.

It is an arithmetic number, because the mean of its divisors is an integer number (1602195).

Almost surely, 2^3204389 is an apocalyptic number.

It is an amenable number.

3204389 is a deficient number, since it is larger than the sum of its proper divisors (1).

3204389 is an equidigital number, since it uses as much as digits as its factorization.

3204389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 3204389 is about 1790.0807244368. The cubic root of 3204389 is about 147.4286008936.

The spelling of 3204389 in words is "three million, two hundred four thousand, three hundred eighty-nine".