345434317 has 2 divisors, whose sum is σ = 345434318. Its totient is φ = 345434316.

The previous prime is 345434311. The next prime is 345434347. The reversal of 345434317 is 713434543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331640521 + 13793796 = 18211^2 + 3714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345434317 is a prime.

It is a super-2 number, since 2×345434317² = 238649734722512978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345434311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172717158 + 172717159.

It is an arithmetic number, because the mean of its divisors is an integer number (172717159).

Almost surely, 2^345434317 is an apocalyptic number.

It is an amenable number.

345434317 is a deficient number, since it is larger than the sum of its proper divisors (1).

345434317 is an equidigital number, since it uses as much as digits as its factorization.

345434317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 34.

The square root of 345434317 is about 18585.8633643961. The cubic root of 345434317 is about 701.6520957198.

The spelling of 345434317 in words is "three hundred forty-five million, four hundred thirty-four thousand, three hundred seventeen".