345839 has 8 divisors (see below), whose sum is σ = 383040. Its totient is φ = 310176.

The previous prime is 345823. The next prime is 345853. The reversal of 345839 is 938543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345839 - 2⁴ = 345823 is a prime.

It is a super-2 number, since 2×345839² = 239209227842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122 + ... + 840.

It is an arithmetic number, because the mean of its divisors is an integer number (47880).

2³⁴⁵⁸³⁹ is an apocalyptic number.

345839 is a deficient number, since it is larger than the sum of its proper divisors (37201).

345839 is a wasteful number, since it uses less digits than its factorization.

345839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769.

The product of its digits is 12960, while the sum is 32.

The square root of 345839 is about 588.0807767646. The cubic root of 345839 is about 70.1925988469.

Subtracting 345839 from its reverse (938543), we obtain a cube (592704 = 84³).

The spelling of 345839 in words is "three hundred forty-five thousand, eight hundred thirty-nine".