351823 has 4 divisors (see below), whose sum is σ = 370360. Its totient is φ = 333288.

The previous prime is 351811. The next prime is 351829. The reversal of 351823 is 328153.

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

It is a cyclic number.

It is not a de Polignac number, because 351823 - 2⁹ = 351311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 351794 and 351803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351829) 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, 9240 + ... + 9277.

It is an arithmetic number, because the mean of its divisors is an integer number (92590).

2³⁵¹⁸²³ is an apocalyptic number.

351823 is a deficient number, since it is larger than the sum of its proper divisors (18537).

351823 is a wasteful number, since it uses less digits than its factorization.

351823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18536.

The product of its digits is 720, while the sum is 22.

The square root of 351823 is about 593.1466934916. The cubic root of 351823 is about 70.5951300319.

Adding to 351823 its reverse (328153), we get a palindrome (679976).

The spelling of 351823 in words is "three hundred fifty-one thousand, eight hundred twenty-three".