347899 has 2 divisors, whose sum is σ = 347900. Its totient is φ = 347898.

The previous prime is 347891. The next prime is 347929. The reversal of 347899 is 998743.

It is a weak prime.

It is an emirp because it is prime and its reverse (998743) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 347899 - 2³ = 347891 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (347891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173949 + 173950.

It is an arithmetic number, because the mean of its divisors is an integer number (173950).

2³⁴⁷⁸⁹⁹ is an apocalyptic number.

347899 is a deficient number, since it is larger than the sum of its proper divisors (1).

347899 is an equidigital number, since it uses as much as digits as its factorization.

347899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 347899 is about 589.8296364206. The cubic root of 347899 is about 70.3316911236.

The spelling of 347899 in words is "three hundred forty-seven thousand, eight hundred ninety-nine".