342947 has 4 divisors (see below), whose sum is σ = 374136. Its totient is φ = 311760.

The previous prime is 342929. The next prime is 342949. The reversal of 342947 is 749243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 749243 = 11 ⋅68113.

It is a cyclic number.

It is not a de Polignac number, because 342947 - 2⁸ = 342691 is a prime.

It is a super-2 number, since 2×342947² = 235225289618, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁹ + 4² + 9⁵ + 2¹¹ + 4⁹ + 7 .

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342947.

It is not an unprimeable number, because it can be changed into a prime (342949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15578 + ... + 15599.

It is an arithmetic number, because the mean of its divisors is an integer number (93534).

2³⁴²⁹⁴⁷ is an apocalyptic number.

342947 is a deficient number, since it is larger than the sum of its proper divisors (31189).

342947 is a wasteful number, since it uses less digits than its factorization.

342947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31188.

The product of its digits is 6048, while the sum is 29.

The square root of 342947 is about 585.6167688856. The cubic root of 342947 is about 69.9963943721.

The spelling of 342947 in words is "three hundred forty-two thousand, nine hundred forty-seven".