340365673 has 2 divisors, whose sum is σ = 340365674. Its totient is φ = 340365672.

The previous prime is 340365671. The next prime is 340365713. The reversal of 340365673 is 376563043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339038569 + 1327104 = 18413^2 + 1152^2 .

It is an emirp because it is prime and its reverse (376563043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340365673 - 2¹ = 340365671 is a prime.

Together with 340365671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (340365671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170182836 + 170182837.

It is an arithmetic number, because the mean of its divisors is an integer number (170182837).

Almost surely, 2^340365673 is an apocalyptic number.

It is an amenable number.

340365673 is a deficient number, since it is larger than the sum of its proper divisors (1).

340365673 is an equidigital number, since it uses as much as digits as its factorization.

340365673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 37.

The square root of 340365673 is about 18449.0019513252. The cubic root of 340365673 is about 698.2033333171.

The spelling of 340365673 in words is "three hundred forty million, three hundred sixty-five thousand, six hundred seventy-three".