345493 has 4 divisors (see below), whose sum is σ = 346720. Its totient is φ = 344268.

The previous prime is 345487. The next prime is 345511. The reversal of 345493 is 394543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 394543 = 41 ⋅9623.

It is a cyclic number.

It is not a de Polignac number, because 345493 - 2⁵ = 345461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345413) 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, 46 + ... + 832.

It is an arithmetic number, because the mean of its divisors is an integer number (86680).

2³⁴⁵⁴⁹³ is an apocalyptic number.

It is an amenable number.

345493 is a deficient number, since it is larger than the sum of its proper divisors (1227).

345493 is an equidigital number, since it uses as much as digits as its factorization.

345493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226.

The product of its digits is 6480, while the sum is 28.

The square root of 345493 is about 587.7865258748. The cubic root of 345493 is about 70.1691826108.

It can be divided in two parts, 345 and 493, that added together give a palindrome (838).

The spelling of 345493 in words is "three hundred forty-five thousand, four hundred ninety-three".