3902609 has 2 divisors, whose sum is σ = 3902610. Its totient is φ = 3902608.

The previous prime is 3902579. The next prime is 3902641. The reversal of 3902609 is 9062093.

3902609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3841600 + 61009 = 1960^2 + 247^2 .

It is an emirp because it is prime and its reverse (9062093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3902609 - 2¹² = 3898513 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3902009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1951304 + 1951305.

It is an arithmetic number, because the mean of its divisors is an integer number (1951305).

Almost surely, 2^3902609 is an apocalyptic number.

It is an amenable number.

3902609 is a deficient number, since it is larger than the sum of its proper divisors (1).

3902609 is an equidigital number, since it uses as much as digits as its factorization.

3902609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 3902609 is about 1975.5022146280. The cubic root of 3902609 is about 157.4411840521.

The spelling of 3902609 in words is "three million, nine hundred two thousand, six hundred nine".