345768691 has 2 divisors, whose sum is σ = 345768692. Its totient is φ = 345768690.

The previous prime is 345768673. The next prime is 345768727. The reversal of 345768691 is 196867543.

It is a weak prime.

It is an emirp because it is prime and its reverse (196867543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345768691 - 2⁵ = 345768659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (345768611) 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, 172884345 + 172884346.

It is an arithmetic number, because the mean of its divisors is an integer number (172884346).

Almost surely, 2^345768691 is an apocalyptic number.

345768691 is a deficient number, since it is larger than the sum of its proper divisors (1).

345768691 is an equidigital number, since it uses as much as digits as its factorization.

345768691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 345768691 is about 18594.8565737948. The cubic root of 345768691 is about 701.8784181071.

The spelling of 345768691 in words is "three hundred forty-five million, seven hundred sixty-eight thousand, six hundred ninety-one".