347243345 has 4 divisors (see below), whose sum is σ = 416692020. Its totient is φ = 277794672.

The previous prime is 347243341. The next prime is 347243359. The reversal of 347243345 is 543342743.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543342743 = 37 ⋅14684939.

It can be written as a sum of positive squares in 2 ways, for example, as 150234049 + 197009296 = 12257^2 + 14036^2 .

It is a cyclic number.

It is not a de Polignac number, because 347243345 - 2² = 347243341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (347243341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34724330 + ... + 34724339.

It is an arithmetic number, because the mean of its divisors is an integer number (104173005).

Almost surely, 2^347243345 is an apocalyptic number.

It is an amenable number.

347243345 is a deficient number, since it is larger than the sum of its proper divisors (69448675).

347243345 is an equidigital number, since it uses as much as digits as its factorization.

347243345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69448674.

The product of its digits is 120960, while the sum is 35.

The square root of 347243345 is about 18634.4665874825. The cubic root of 347243345 is about 702.8748066417.

The spelling of 347243345 in words is "three hundred forty-seven million, two hundred forty-three thousand, three hundred forty-five".