3502409 has 2 divisors, whose sum is σ = 3502410. Its totient is φ = 3502408.

The previous prime is 3502363. The next prime is 3502427. The reversal of 3502409 is 9042053.

3502409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2496400 + 1006009 = 1580^2 + 1003^2 .

It is an emirp because it is prime and its reverse (9042053) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3502409 - 2²⁰ = 2453833 is a prime.

It is not a weakly prime, because it can be changed into another prime (3502439) 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, 1751204 + 1751205.

It is an arithmetic number, because the mean of its divisors is an integer number (1751205).

Almost surely, 2^3502409 is an apocalyptic number.

It is an amenable number.

3502409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3502409 is an equidigital number, since it uses as much as digits as its factorization.

3502409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 3502409 is about 1871.4724149717. The cubic root of 3502409 is about 151.8642746184.

The spelling of 3502409 in words is "three million, five hundred two thousand, four hundred nine".