340579847 has 2 divisors, whose sum is σ = 340579848. Its totient is φ = 340579846.

The previous prime is 340579843. The next prime is 340579849. The reversal of 340579847 is 748975043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340579847 - 2² = 340579843 is a prime.

Together with 340579849, 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 (340579843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170289923 + 170289924.

It is an arithmetic number, because the mean of its divisors is an integer number (170289924).

Almost surely, 2^340579847 is an apocalyptic number.

340579847 is a deficient number, since it is larger than the sum of its proper divisors (1).

340579847 is an equidigital number, since it uses as much as digits as its factorization.

340579847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 340579847 is about 18454.8055259328. The cubic root of 340579847 is about 698.3497500079.

The spelling of 340579847 in words is "three hundred forty million, five hundred seventy-nine thousand, eight hundred forty-seven".