349087273 has 2 divisors, whose sum is σ = 349087274. Its totient is φ = 349087272.

The previous prime is 349087259. The next prime is 349087289. The reversal of 349087273 is 372780943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 327899664 + 21187609 = 18108^2 + 4603^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349087273 is a prime.

It is not a weakly prime, because it can be changed into another prime (349087223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174543636 + 174543637.

It is an arithmetic number, because the mean of its divisors is an integer number (174543637).

Almost surely, 2^349087273 is an apocalyptic number.

It is an amenable number.

349087273 is a deficient number, since it is larger than the sum of its proper divisors (1).

349087273 is an equidigital number, since it uses as much as digits as its factorization.

349087273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 349087273 is about 18683.8773545536. The cubic root of 349087273 is about 704.1167437517.

The spelling of 349087273 in words is "three hundred forty-nine million, eighty-seven thousand, two hundred seventy-three".