345234893 has 2 divisors, whose sum is σ = 345234894. Its totient is φ = 345234892.

The previous prime is 345234889. The next prime is 345234947. The reversal of 345234893 is 398432543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213949129 + 131285764 = 14627^2 + 11458^2 .

It is an emirp because it is prime and its reverse (398432543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345234893 - 2² = 345234889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345234893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345234803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172617446 + 172617447.

It is an arithmetic number, because the mean of its divisors is an integer number (172617447).

Almost surely, 2^345234893 is an apocalyptic number.

It is an amenable number.

345234893 is a deficient number, since it is larger than the sum of its proper divisors (1).

345234893 is an equidigital number, since it uses as much as digits as its factorization.

345234893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 41.

The square root of 345234893 is about 18580.4976521082. The cubic root of 345234893 is about 701.5170452472.

The spelling of 345234893 in words is "three hundred forty-five million, two hundred thirty-four thousand, eight hundred ninety-three".