340320047 has 2 divisors, whose sum is σ = 340320048. Its totient is φ = 340320046.

The previous prime is 340320031. The next prime is 340320067. The reversal of 340320047 is 740023043.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340320047 - 2⁴ = 340320031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340320007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170160023 + 170160024.

It is an arithmetic number, because the mean of its divisors is an integer number (170160024).

Almost surely, 2^340320047 is an apocalyptic number.

340320047 is a deficient number, since it is larger than the sum of its proper divisors (1).

340320047 is an equidigital number, since it uses as much as digits as its factorization.

340320047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 340320047 is about 18447.7653660274. The cubic root of 340320047 is about 698.1721338834.

The spelling of 340320047 in words is "three hundred forty million, three hundred twenty thousand, forty-seven".