349517117 has 2 divisors, whose sum is σ = 349517118. Its totient is φ = 349517116.

The previous prime is 349517107. The next prime is 349517153. The reversal of 349517117 is 711715943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 347039641 + 2477476 = 18629^2 + 1574^2 .

It is a cyclic number.

It is not a de Polignac number, because 349517117 - 2⁸ = 349516861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349517107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174758558 + 174758559.

It is an arithmetic number, because the mean of its divisors is an integer number (174758559).

Almost surely, 2^349517117 is an apocalyptic number.

It is an amenable number.

349517117 is a deficient number, since it is larger than the sum of its proper divisors (1).

349517117 is an equidigital number, since it uses as much as digits as its factorization.

349517117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 38.

The square root of 349517117 is about 18695.3768884182. The cubic root of 349517117 is about 704.4056268289.

The spelling of 349517117 in words is "three hundred forty-nine million, five hundred seventeen thousand, one hundred seventeen".