345393 has 6 divisors (see below), whose sum is σ = 498914. Its totient is φ = 230256.

The previous prime is 345379. The next prime is 345413. The reversal of 345393 is 393543.

It can be written as a sum of positive squares in only one way, i.e., 178929 + 166464 = 423^2 + 408^2 .

It is not a de Polignac number, because 345393 - 2⁶ = 345329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (345193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19180 + ... + 19197.

2³⁴⁵³⁹³ is an apocalyptic number.

It is an amenable number.

345393 is a deficient number, since it is larger than the sum of its proper divisors (153521).

345393 is a wasteful number, since it uses less digits than its factorization.

345393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38383 (or 38380 counting only the distinct ones).

The product of its digits is 4860, while the sum is 27.

The square root of 345393 is about 587.7014548221. The cubic root of 345393 is about 70.1624120005.

The spelling of 345393 in words is "three hundred forty-five thousand, three hundred ninety-three".