345000017 has 2 divisors, whose sum is σ = 345000018. Its totient is φ = 345000016.

The previous prime is 345000013. The next prime is 345000049. The reversal of 345000017 is 710000543.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239506576 + 105493441 = 15476^2 + 10271^2 .

It is a cyclic number.

It is not a de Polignac number, because 345000017 - 2² = 345000013 is a prime.

It is not a weakly prime, because it can be changed into another prime (345000013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172500008 + 172500009.

It is an arithmetic number, because the mean of its divisors is an integer number (172500009).

Almost surely, 2^345000017 is an apocalyptic number.

It is an amenable number.

345000017 is a deficient number, since it is larger than the sum of its proper divisors (1).

345000017 is an equidigital number, since it uses as much as digits as its factorization.

345000017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 345000017 is about 18574.1760786313. The cubic root of 345000017 is about 701.3579198699.

The spelling of 345000017 in words is "three hundred forty-five million, seventeen", and thus it is an aban number.