348989 has 2 divisors, whose sum is σ = 348990. Its totient is φ = 348988.

The previous prime is 348949. The next prime is 348991. The reversal of 348989 is 989843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 293764 + 55225 = 542^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 348989 - 2¹² = 344893 is a prime.

It is a Sophie Germain prime.

Together with 348991, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174494 + 174495.

It is an arithmetic number, because the mean of its divisors is an integer number (174495).

2³⁴⁸⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

348989 is a deficient number, since it is larger than the sum of its proper divisors (1).

348989 is an equidigital number, since it uses as much as digits as its factorization.

348989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 41.

The square root of 348989 is about 590.7529094300. The cubic root of 348989 is about 70.4050664613.

Adding to 348989 its sum of digits (41), we get a triangular number (349030 = T₈₃₅).

The spelling of 348989 in words is "three hundred forty-eight thousand, nine hundred eighty-nine".