3530209 has 2 divisors, whose sum is σ = 3530210. Its totient is φ = 3530208.

The previous prime is 3530179. The next prime is 3530221. The reversal of 3530209 is 9020353.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3478225 + 51984 = 1865^2 + 228^2 .

It is a cyclic number.

It is not a de Polignac number, because 3530209 - 2⁷ = 3530081 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3530209.

It is not a weakly prime, because it can be changed into another prime (3530299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1765104 + 1765105.

It is an arithmetic number, because the mean of its divisors is an integer number (1765105).

Almost surely, 2^3530209 is an apocalyptic number.

It is an amenable number.

3530209 is a deficient number, since it is larger than the sum of its proper divisors (1).

3530209 is an equidigital number, since it uses as much as digits as its factorization.

3530209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 3530209 is about 1878.8850417202. The cubic root of 3530209 is about 152.2650183856.

The spelling of 3530209 in words is "three million, five hundred thirty thousand, two hundred nine".