3486209 has 2 divisors, whose sum is σ = 3486210. Its totient is φ = 3486208.

The previous prime is 3486199. The next prime is 3486221. The reversal of 3486209 is 9026843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2093809 + 1392400 = 1447^2 + 1180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3486209 is a prime.

It is not a weakly prime, because it can be changed into another prime (3486269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1743104 + 1743105.

It is an arithmetic number, because the mean of its divisors is an integer number (1743105).

Almost surely, 2^3486209 is an apocalyptic number.

It is an amenable number.

3486209 is a deficient number, since it is larger than the sum of its proper divisors (1).

3486209 is an equidigital number, since it uses as much as digits as its factorization.

3486209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 3486209 is about 1867.1392556529. The cubic root of 3486209 is about 151.6297689630.

The spelling of 3486209 in words is "three million, four hundred eighty-six thousand, two hundred nine".