349856293 has 2 divisors, whose sum is σ = 349856294. Its totient is φ = 349856292.

The previous prime is 349856281. The next prime is 349856323. The reversal of 349856293 is 392658943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342139009 + 7717284 = 18497^2 + 2778^2 .

It is a cyclic number.

It is not a de Polignac number, because 349856293 - 2²¹ = 347759141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349856693) 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, 174928146 + 174928147.

It is an arithmetic number, because the mean of its divisors is an integer number (174928147).

Almost surely, 2^349856293 is an apocalyptic number.

It is an amenable number.

349856293 is a deficient number, since it is larger than the sum of its proper divisors (1).

349856293 is an equidigital number, since it uses as much as digits as its factorization.

349856293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 49.

The square root of 349856293 is about 18704.4458084168. The cubic root of 349856293 is about 704.6334079876.

The spelling of 349856293 in words is "three hundred forty-nine million, eight hundred fifty-six thousand, two hundred ninety-three".