347228109 has 6 divisors (see below), whose sum is σ = 501551726. Its totient is φ = 231485400.

The previous prime is 347228099. The next prime is 347228113. The reversal of 347228109 is 901822743.

It can be written as a sum of positive squares in only one way, i.e., 192598884 + 154629225 = 13878^2 + 12435^2 .

It is not a de Polignac number, because 347228109 - 2⁷ = 347227981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347228909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19290442 + ... + 19290459.

Almost surely, 2^347228109 is an apocalyptic number.

It is an amenable number.

347228109 is a deficient number, since it is larger than the sum of its proper divisors (154323617).

347228109 is a wasteful number, since it uses less digits than its factorization.

347228109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38580907 (or 38580904 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 347228109 is about 18634.0577706521. The cubic root of 347228109 is about 702.8645264762.

The spelling of 347228109 in words is "three hundred forty-seven million, two hundred twenty-eight thousand, one hundred nine".