347969 has 2 divisors, whose sum is σ = 347970. Its totient is φ = 347968.

The previous prime is 347959. The next prime is 347981. The reversal of 347969 is 969743.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250000 + 97969 = 500^2 + 313^2 .

It is an emirp because it is prime and its reverse (969743) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-347969 is a prime.

It is a super-2 number, since 2×347969² = 242164849922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (347929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173984 + 173985.

It is an arithmetic number, because the mean of its divisors is an integer number (173985).

2³⁴⁷⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

347969 is a deficient number, since it is larger than the sum of its proper divisors (1).

347969 is an equidigital number, since it uses as much as digits as its factorization.

347969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 38.

The square root of 347969 is about 589.8889726042. Note that the first 3 decimals coincide. The cubic root of 347969 is about 70.3364079028.

The spelling of 347969 in words is "three hundred forty-seven thousand, nine hundred sixty-nine".