350209 has 4 divisors (see below), whose sum is σ = 355504. Its totient is φ = 344916.

The previous prime is 350191. The next prime is 350213. The reversal of 350209 is 902053.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 350209 - 2⁹ = 349697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (350219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2547 + ... + 2680.

It is an arithmetic number, because the mean of its divisors is an integer number (88876).

It is a Proth number, since it is equal to 171 ⋅ 2¹¹ + 1 and 171 < 2¹¹.

2³⁵⁰²⁰⁹ is an apocalyptic number.

It is an amenable number.

350209 is a deficient number, since it is larger than the sum of its proper divisors (5295).

350209 is an equidigital number, since it uses as much as digits as its factorization.

350209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5294.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 350209 is about 591.7845891877. The cubic root of 350209 is about 70.4870120098.

The spelling of 350209 in words is "three hundred fifty thousand, two hundred nine".