353845 has 4 divisors (see below), whose sum is σ = 424620. Its totient is φ = 283072.

The previous prime is 353833. The next prime is 353867. The reversal of 353845 is 548353.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 548353 = 13 ⋅42181.

It can be written as a sum of positive squares in 2 ways, for example, as 236196 + 117649 = 486^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 353845 - 2⁵ = 353813 is a prime.

353845 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35380 + ... + 35389.

It is an arithmetic number, because the mean of its divisors is an integer number (106155).

2³⁵³⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

353845 is a deficient number, since it is larger than the sum of its proper divisors (70775).

353845 is an equidigital number, since it uses as much as digits as its factorization.

353845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70774.

The product of its digits is 7200, while the sum is 28.

The square root of 353845 is about 594.8487202642. The cubic root of 353845 is about 70.7301134034.

The spelling of 353845 in words is "three hundred fifty-three thousand, eight hundred forty-five".