345275717 has 2 divisors, whose sum is σ = 345275718. Its totient is φ = 345275716.

The previous prime is 345275687. The next prime is 345275731. The reversal of 345275717 is 717572543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 338044996 + 7230721 = 18386^2 + 2689^2 .

It is a cyclic number.

It is not a de Polignac number, because 345275717 - 2⁸ = 345275461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345275017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172637858 + 172637859.

It is an arithmetic number, because the mean of its divisors is an integer number (172637859).

Almost surely, 2^345275717 is an apocalyptic number.

It is an amenable number.

345275717 is a deficient number, since it is larger than the sum of its proper divisors (1).

345275717 is an equidigital number, since it uses as much as digits as its factorization.

345275717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 205800, while the sum is 41.

The square root of 345275717 is about 18581.5961908551. The cubic root of 345275717 is about 701.5446956032.

The spelling of 345275717 in words is "three hundred forty-five million, two hundred seventy-five thousand, seven hundred seventeen".