348386813 has 2 divisors, whose sum is σ = 348386814. Its totient is φ = 348386812.

The previous prime is 348386803. The next prime is 348386827. The reversal of 348386813 is 318683843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308986084 + 39400729 = 17578^2 + 6277^2 .

It is a cyclic number.

It is not a de Polignac number, because 348386813 - 2⁶ = 348386749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348386803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174193406 + 174193407.

It is an arithmetic number, because the mean of its divisors is an integer number (174193407).

Almost surely, 2^348386813 is an apocalyptic number.

It is an amenable number.

348386813 is a deficient number, since it is larger than the sum of its proper divisors (1).

348386813 is an equidigital number, since it uses as much as digits as its factorization.

348386813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 44.

The square root of 348386813 is about 18665.1229034261. The cubic root of 348386813 is about 703.6454806409.

The spelling of 348386813 in words is "three hundred forty-eight million, three hundred eighty-six thousand, eight hundred thirteen".