350905 has 4 divisors (see below), whose sum is σ = 421092. Its totient is φ = 280720.

The previous prime is 350899. The next prime is 350941. The reversal of 350905 is 509053.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 138384 + 212521 = 372^2 + 461^2 .

It is not a de Polignac number, because 350905 - 2¹⁵ = 318137 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 35086 + ... + 35095.

It is an arithmetic number, because the mean of its divisors is an integer number (105273).

2³⁵⁰⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

350905 is a deficient number, since it is larger than the sum of its proper divisors (70187).

350905 is an equidigital number, since it uses as much as digits as its factorization.

350905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70186.

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 350905 is about 592.3723491184. The cubic root of 350905 is about 70.5336760461.

Adding to 350905 its reverse (509053), we get a palindrome (859958).

The spelling of 350905 in words is "three hundred fifty thousand, nine hundred five".