342717047 has 2 divisors, whose sum is σ = 342717048. Its totient is φ = 342717046.

The previous prime is 342716989. The next prime is 342717077. The reversal of 342717047 is 740717243.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342717047 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 342716998 and 342717016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342717077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171358523 + 171358524.

It is an arithmetic number, because the mean of its divisors is an integer number (171358524).

Almost surely, 2^342717047 is an apocalyptic number.

342717047 is a deficient number, since it is larger than the sum of its proper divisors (1).

342717047 is an equidigital number, since it uses as much as digits as its factorization.

342717047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 342717047 is about 18512.6185884115. The cubic root of 342717047 is about 699.8074620124.

The spelling of 342717047 in words is "three hundred forty-two million, seven hundred seventeen thousand, forty-seven".