347389 has 4 divisors (see below), whose sum is σ = 397024. Its totient is φ = 297756.

The previous prime is 347359. The next prime is 347401. The reversal of 347389 is 983743.

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 an emirpimes, since its reverse is a distinct semiprime: 983743 = 811 ⋅1213.

It is a cyclic number.

It is not a de Polignac number, because 347389 - 2⁹ = 346877 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 (347329) 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, 24807 + ... + 24820.

It is an arithmetic number, because the mean of its divisors is an integer number (99256).

2³⁴⁷³⁸⁹ is an apocalyptic number.

It is an amenable number.

347389 is a deficient number, since it is larger than the sum of its proper divisors (49635).

347389 is an equidigital number, since it uses as much as digits as its factorization.

347389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49634.

The product of its digits is 18144, while the sum is 34.

The square root of 347389 is about 589.3971496368. The cubic root of 347389 is about 70.2973069066.

The spelling of 347389 in words is "three hundred forty-seven thousand, three hundred eighty-nine".