347240273 has 2 divisors, whose sum is σ = 347240274. Its totient is φ = 347240272.

The previous prime is 347240239. The next prime is 347240279. The reversal of 347240273 is 372042743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210163009 + 137077264 = 14497^2 + 11708^2 .

It is a cyclic number.

It is not a de Polignac number, because 347240273 - 2⁸ = 347240017 is a prime.

It is a super-2 number, since 2×347240273² = 241151614386229058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (347240279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173620136 + 173620137.

It is an arithmetic number, because the mean of its divisors is an integer number (173620137).

Almost surely, 2^347240273 is an apocalyptic number.

It is an amenable number.

347240273 is a deficient number, since it is larger than the sum of its proper divisors (1).

347240273 is an equidigital number, since it uses as much as digits as its factorization.

347240273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 32.

The square root of 347240273 is about 18634.3841593974. The cubic root of 347240273 is about 702.8727338996.

The spelling of 347240273 in words is "three hundred forty-seven million, two hundred forty thousand, two hundred seventy-three".