350811 has 20 divisors (see below), whose sum is σ = 540144. Its totient is φ = 226800.

The previous prime is 350809. The next prime is 350843. The reversal of 350811 is 118053.

It is a happy number.

It is not a de Polignac number, because 350811 - 2¹ = 350809 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (350851) 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 in 19 ways as a sum of consecutive naturals, for example, 4906 + ... + 4976.

2³⁵⁰⁸¹¹ is an apocalyptic number.

350811 is a deficient number, since it is larger than the sum of its proper divisors (189333).

350811 is an equidigital number, since it uses as much as digits as its factorization.

350811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 350811 is about 592.2930018158. The cubic root of 350811 is about 70.5273773255.

Adding to 350811 its reverse (118053), we get a palindrome (468864).

The spelling of 350811 in words is "three hundred fifty thousand, eight hundred eleven".