345968617 has 2 divisors, whose sum is σ = 345968618. Its totient is φ = 345968616.

The previous prime is 345968591. The next prime is 345968629. The reversal of 345968617 is 716869543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264680361 + 81288256 = 16269^2 + 9016^2 .

It is a cyclic number.

It is not a de Polignac number, because 345968617 - 2⁷ = 345968489 is a prime.

It is a super-3 number, since 3×345968617³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (345968647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172984308 + 172984309.

It is an arithmetic number, because the mean of its divisors is an integer number (172984309).

Almost surely, 2^345968617 is an apocalyptic number.

It is an amenable number.

345968617 is a deficient number, since it is larger than the sum of its proper divisors (1).

345968617 is an equidigital number, since it uses as much as digits as its factorization.

345968617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 345968617 is about 18600.2316383426. The cubic root of 345968617 is about 702.0136691305.

The spelling of 345968617 in words is "three hundred forty-five million, nine hundred sixty-eight thousand, six hundred seventeen".