4189609 has 2 divisors, whose sum is σ = 4189610. Its totient is φ = 4189608.

The previous prime is 4189583. The next prime is 4189631. The reversal of 4189609 is 9069814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3229209 + 960400 = 1797^2 + 980^2 .

It is a cyclic number.

It is not a de Polignac number, because 4189609 - 2¹³ = 4181417 is a prime.

It is not a weakly prime, because it can be changed into another prime (4189699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2094804 + 2094805.

It is an arithmetic number, because the mean of its divisors is an integer number (2094805).

Almost surely, 2^4189609 is an apocalyptic number.

It is an amenable number.

4189609 is a deficient number, since it is larger than the sum of its proper divisors (1).

4189609 is an equidigital number, since it uses as much as digits as its factorization.

4189609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 4189609 is about 2046.8534388177. The cubic root of 4189609 is about 161.2096980786.

The spelling of 4189609 in words is "four million, one hundred eighty-nine thousand, six hundred nine".