340337447 has 2 divisors, whose sum is σ = 340337448. Its totient is φ = 340337446.

The previous prime is 340337419. The next prime is 340337449. The reversal of 340337447 is 744733043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340337447 - 2¹⁴ = 340321063 is a prime.

Together with 340337449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340337449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170168723 + 170168724.

It is an arithmetic number, because the mean of its divisors is an integer number (170168724).

Almost surely, 2^340337447 is an apocalyptic number.

340337447 is a deficient number, since it is larger than the sum of its proper divisors (1).

340337447 is an equidigital number, since it uses as much as digits as its factorization.

340337447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 35.

The square root of 340337447 is about 18448.2369618346. The cubic root of 340337447 is about 698.1840324753.

The spelling of 340337447 in words is "three hundred forty million, three hundred thirty-seven thousand, four hundred forty-seven".