348999517 has 2 divisors, whose sum is σ = 348999518. Its totient is φ = 348999516.

The previous prime is 348999509. The next prime is 348999529. The reversal of 348999517 is 715999843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 337309956 + 11689561 = 18366^2 + 3419^2 .

It is a cyclic number.

It is not a de Polignac number, because 348999517 - 2³ = 348999509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348999557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174499758 + 174499759.

It is an arithmetic number, because the mean of its divisors is an integer number (174499759).

Almost surely, 2^348999517 is an apocalyptic number.

It is an amenable number.

348999517 is a deficient number, since it is larger than the sum of its proper divisors (1).

348999517 is an equidigital number, since it uses as much as digits as its factorization.

348999517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 55.

The square root of 348999517 is about 18681.5287650663. The cubic root of 348999517 is about 704.0577368765.

The spelling of 348999517 in words is "three hundred forty-eight million, nine hundred ninety-nine thousand, five hundred seventeen".