355493 has 4 divisors (see below), whose sum is σ = 356748. Its totient is φ = 354240.

The previous prime is 355483. The next prime is 355499. The reversal of 355493 is 394553.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 394553 = 17 ⋅23209.

It can be written as a sum of positive squares in 2 ways, for example, as 66049 + 289444 = 257^2 + 538^2 .

It is a cyclic number.

It is not a de Polignac number, because 355493 - 2¹⁰ = 354469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355499) 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, 23 + ... + 843.

It is an arithmetic number, because the mean of its divisors is an integer number (89187).

2³⁵⁵⁴⁹³ is an apocalyptic number.

It is an amenable number.

355493 is a deficient number, since it is larger than the sum of its proper divisors (1255).

355493 is an equidigital number, since it uses as much as digits as its factorization.

355493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254.

The product of its digits is 8100, while the sum is 29.

The square root of 355493 is about 596.2323372646. The cubic root of 355493 is about 70.8397496687.

Subtracting 355493 from its reverse (394553), we obtain a triangular number (39060 = T₂₇₉).

It can be divided in two parts, 355 and 493, that added together give a palindrome (848).

The spelling of 355493 in words is "three hundred fifty-five thousand, four hundred ninety-three".