348281789 has 2 divisors, whose sum is σ = 348281790. Its totient is φ = 348281788.

The previous prime is 348281783. The next prime is 348281803. The reversal of 348281789 is 987182843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319229689 + 29052100 = 17867^2 + 5390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-348281789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348281783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174140894 + 174140895.

It is an arithmetic number, because the mean of its divisors is an integer number (174140895).

Almost surely, 2^348281789 is an apocalyptic number.

It is an amenable number.

348281789 is a deficient number, since it is larger than the sum of its proper divisors (1).

348281789 is an equidigital number, since it uses as much as digits as its factorization.

348281789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 50.

The square root of 348281789 is about 18662.3093158376. The cubic root of 348281789 is about 703.5747670095.

The spelling of 348281789 in words is "three hundred forty-eight million, two hundred eighty-one thousand, seven hundred eighty-nine".