345386329 has 2 divisors, whose sum is σ = 345386330. Its totient is φ = 345386328.

The previous prime is 345386311. The next prime is 345386339. The reversal of 345386329 is 923683543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 344288025 + 1098304 = 18555^2 + 1048^2 .

It is a cyclic number.

It is not a de Polignac number, because 345386329 - 2¹⁹ = 344862041 is a prime.

It is not a weakly prime, because it can be changed into another prime (345386339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172693164 + 172693165.

It is an arithmetic number, because the mean of its divisors is an integer number (172693165).

Almost surely, 2^345386329 is an apocalyptic number.

It is an amenable number.

345386329 is a deficient number, since it is larger than the sum of its proper divisors (1).

345386329 is an equidigital number, since it uses as much as digits as its factorization.

345386329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 43.

The square root of 345386329 is about 18584.5723383671. The cubic root of 345386329 is about 701.6196028662.

The spelling of 345386329 in words is "three hundred forty-five million, three hundred eighty-six thousand, three hundred twenty-nine".