340609207 has 2 divisors, whose sum is σ = 340609208. Its totient is φ = 340609206.

The previous prime is 340609163. The next prime is 340609237. The reversal of 340609207 is 702906043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340609207 - 2⁷ = 340609079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340609237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170304603 + 170304604.

It is an arithmetic number, because the mean of its divisors is an integer number (170304604).

Almost surely, 2^340609207 is an apocalyptic number.

340609207 is a deficient number, since it is larger than the sum of its proper divisors (1).

340609207 is an equidigital number, since it uses as much as digits as its factorization.

340609207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 340609207 is about 18455.6009655606. The cubic root of 340609207 is about 698.3698167262.

The spelling of 340609207 in words is "three hundred forty million, six hundred nine thousand, two hundred seven".