342043847 has 2 divisors, whose sum is σ = 342043848. Its totient is φ = 342043846.

The previous prime is 342043843. The next prime is 342043901. The reversal of 342043847 is 748340243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 342043847 - 2² = 342043843 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342043843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171021923 + 171021924.

It is an arithmetic number, because the mean of its divisors is an integer number (171021924).

Almost surely, 2^342043847 is an apocalyptic number.

342043847 is a deficient number, since it is larger than the sum of its proper divisors (1).

342043847 is an equidigital number, since it uses as much as digits as its factorization.

342043847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 35.

The square root of 342043847 is about 18494.4274580210. The cubic root of 342043847 is about 699.3489504479.

The spelling of 342043847 in words is "three hundred forty-two million, forty-three thousand, eight hundred forty-seven".