345434347 has 2 divisors, whose sum is σ = 345434348. Its totient is φ = 345434346.

The previous prime is 345434317. The next prime is 345434357. The reversal of 345434347 is 743434543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345434347 - 2¹⁵ = 345401579 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (345434317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172717173 + 172717174.

It is an arithmetic number, because the mean of its divisors is an integer number (172717174).

Almost surely, 2^345434347 is an apocalyptic number.

345434347 is a deficient number, since it is larger than the sum of its proper divisors (1).

345434347 is an equidigital number, since it uses as much as digits as its factorization.

345434347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 37.

The square root of 345434347 is about 18585.8641714611. The cubic root of 345434347 is about 701.6521160320.

The spelling of 345434347 in words is "three hundred forty-five million, four hundred thirty-four thousand, three hundred forty-seven".