3539609 has 2 divisors, whose sum is σ = 3539610. Its totient is φ = 3539608.

The previous prime is 3539603. The next prime is 3539623. The reversal of 3539609 is 9069353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3341584 + 198025 = 1828^2 + 445^2 .

It is an emirp because it is prime and its reverse (9069353) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3539609 - 2⁴ = 3539593 is a prime.

It is not a weakly prime, because it can be changed into another prime (3539603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1769804 + 1769805.

It is an arithmetic number, because the mean of its divisors is an integer number (1769805).

Almost surely, 2^3539609 is an apocalyptic number.

It is an amenable number.

3539609 is a deficient number, since it is larger than the sum of its proper divisors (1).

3539609 is an equidigital number, since it uses as much as digits as its factorization.

3539609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 3539609 is about 1881.3848622757. The cubic root of 3539609 is about 152.4000455816.

The spelling of 3539609 in words is "three million, five hundred thirty-nine thousand, six hundred nine".