345603329 has 2 divisors, whose sum is σ = 345603330. Its totient is φ = 345603328.

The previous prime is 345603317. The next prime is 345603343. The reversal of 345603329 is 923306543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344028304 + 1575025 = 18548^2 + 1255^2 .

It is an emirp because it is prime and its reverse (923306543) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345603329 is a prime.

It is a super-2 number, since 2×345603329² = 238883322031764482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (345603229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172801664 + 172801665.

It is an arithmetic number, because the mean of its divisors is an integer number (172801665).

Almost surely, 2^345603329 is an apocalyptic number.

It is an amenable number.

345603329 is a deficient number, since it is larger than the sum of its proper divisors (1).

345603329 is an equidigital number, since it uses as much as digits as its factorization.

345603329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 35.

The square root of 345603329 is about 18590.4095974242. The cubic root of 345603329 is about 701.7665104173.

The spelling of 345603329 in words is "three hundred forty-five million, six hundred three thousand, three hundred twenty-nine".