340105747 has 2 divisors, whose sum is σ = 340105748. Its totient is φ = 340105746.

The previous prime is 340105729. The next prime is 340105751. The reversal of 340105747 is 747501043.

It is a strong prime.

It is an emirp because it is prime and its reverse (747501043) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340105747 is a prime.

It is not a weakly prime, because it can be changed into another prime (340105847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170052873 + 170052874.

It is an arithmetic number, because the mean of its divisors is an integer number (170052874).

Almost surely, 2^340105747 is an apocalyptic number.

340105747 is a deficient number, since it is larger than the sum of its proper divisors (1).

340105747 is an equidigital number, since it uses as much as digits as its factorization.

340105747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 340105747 is about 18441.9561598004. The cubic root of 340105747 is about 698.0255564625.

The spelling of 340105747 in words is "three hundred forty million, one hundred five thousand, seven hundred forty-seven".