347908991327 has 2 divisors, whose sum is σ = 347908991328. Its totient is φ = 347908991326.

The previous prime is 347908991321. The next prime is 347908991329. The reversal of 347908991327 is 723199809743.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 347908991327 - 2⁸ = 347908991071 is a prime.

It is a super-3 number, since 3×347908991327³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 347908991329, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 347908991327.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (347908991321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173954495663 + 173954495664.

It is an arithmetic number, because the mean of its divisors is an integer number (173954495664).

Almost surely, 2^347908991327 is an apocalyptic number.

347908991327 is a deficient number, since it is larger than the sum of its proper divisors (1).

347908991327 is an equidigital number, since it uses as much as digits as its factorization.

347908991327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20575296, while the sum is 62.

The spelling of 347908991327 in words is "three hundred forty-seven billion, nine hundred eight million, nine hundred ninety-one thousand, three hundred twenty-seven".