342666847 has 4 divisors (see below), whose sum is σ = 344560216. Its totient is φ = 340773480.

The previous prime is 342666791. The next prime is 342666869. The reversal of 342666847 is 748666243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 342666847 - 2¹¹ = 342664799 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342666797 and 342666806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342666887) 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 in 3 ways as a sum of consecutive naturals, for example, 946413 + ... + 946774.

It is an arithmetic number, because the mean of its divisors is an integer number (86140054).

Almost surely, 2^342666847 is an apocalyptic number.

342666847 is a deficient number, since it is larger than the sum of its proper divisors (1893369).

342666847 is a wasteful number, since it uses less digits than its factorization.

342666847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893368.

The product of its digits is 1161216, while the sum is 46.

The square root of 342666847 is about 18511.2627067956. The cubic root of 342666847 is about 699.7732918904.

The spelling of 342666847 in words is "three hundred forty-two million, six hundred sixty-six thousand, eight hundred forty-seven".