348816779 has 2 divisors, whose sum is σ = 348816780. Its totient is φ = 348816778.

The previous prime is 348816757. The next prime is 348816847. The reversal of 348816779 is 977618843.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 348816779 - 2¹² = 348812683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 348816779.

It is not a weakly prime, because it can be changed into another prime (348816709) 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, 174408389 + 174408390.

It is an arithmetic number, because the mean of its divisors is an integer number (174408390).

Almost surely, 2^348816779 is an apocalyptic number.

348816779 is a deficient number, since it is larger than the sum of its proper divisors (1).

348816779 is an equidigital number, since it uses as much as digits as its factorization.

348816779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 53.

The square root of 348816779 is about 18676.6372508543. The cubic root of 348816779 is about 703.9348326332.

The spelling of 348816779 in words is "three hundred forty-eight million, eight hundred sixteen thousand, seven hundred seventy-nine".