349708771 has 2 divisors, whose sum is σ = 349708772. Its totient is φ = 349708770.

The previous prime is 349708769. The next prime is 349708817. The reversal of 349708771 is 177807943.

It is an a-pointer prime, because the next prime (349708817) can be obtained adding 349708771 to its sum of digits (46).

It is a weak prime.

It is an emirp because it is prime and its reverse (177807943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349708771 - 2¹ = 349708769 is a prime.

Together with 349708769, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (349708741) 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, 174854385 + 174854386.

It is an arithmetic number, because the mean of its divisors is an integer number (174854386).

Almost surely, 2^349708771 is an apocalyptic number.

349708771 is a deficient number, since it is larger than the sum of its proper divisors (1).

349708771 is an equidigital number, since it uses as much as digits as its factorization.

349708771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 349708771 is about 18700.5018916606. The cubic root of 349708771 is about 704.5343544184.

The spelling of 349708771 in words is "three hundred forty-nine million, seven hundred eight thousand, seven hundred seventy-one".