347965 has 4 divisors (see below), whose sum is σ = 417564. Its totient is φ = 278368.

The previous prime is 347959. The next prime is 347969. The reversal of 347965 is 569743.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 569743 = 109 ⋅5227.

It can be written as a sum of positive squares in 2 ways, for example, as 71289 + 276676 = 267^2 + 526^2 .

It is a cyclic number.

It is not a de Polignac number, because 347965 - 2³ = 347957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 347965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347969) 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, 34792 + ... + 34801.

It is an arithmetic number, because the mean of its divisors is an integer number (104391).

2³⁴⁷⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

347965 is a deficient number, since it is larger than the sum of its proper divisors (69599).

347965 is an equidigital number, since it uses as much as digits as its factorization.

347965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69598.

The product of its digits is 22680, while the sum is 34.

The square root of 347965 is about 589.8855821259. The cubic root of 347965 is about 70.3361383896.

The spelling of 347965 in words is "three hundred forty-seven thousand, nine hundred sixty-five".