349385273 has 2 divisors, whose sum is σ = 349385274. Its totient is φ = 349385272.

The previous prime is 349385251. The next prime is 349385279. The reversal of 349385273 is 372583943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249545209 + 99840064 = 15797^2 + 9992^2 .

It is a cyclic number.

It is not a de Polignac number, because 349385273 - 2⁸ = 349385017 is a prime.

It is not a weakly prime, because it can be changed into another prime (349385279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174692636 + 174692637.

It is an arithmetic number, because the mean of its divisors is an integer number (174692637).

Almost surely, 2^349385273 is an apocalyptic number.

It is an amenable number.

349385273 is a deficient number, since it is larger than the sum of its proper divisors (1).

349385273 is an equidigital number, since it uses as much as digits as its factorization.

349385273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 44.

The square root of 349385273 is about 18691.8504434419. The cubic root of 349385273 is about 704.3170442951.

The spelling of 349385273 in words is "three hundred forty-nine million, three hundred eighty-five thousand, two hundred seventy-three".