343678947 has 8 divisors (see below), whose sum is σ = 459713280. Its totient is φ = 228381960.

The previous prime is 343678943. The next prime is 343678997. The reversal of 343678947 is 749876343.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 343678947 - 2² = 343678943 is a prime.

It is a super-2 number, since 2×343678947² = 236230437222057618, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 343678947.

It is not an unprimeable number, because it can be changed into a prime (343678943) 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 7 ways as a sum of consecutive naturals, for example, 183247 + ... + 185112.

It is an arithmetic number, because the mean of its divisors is an integer number (57464160).

Almost surely, 2^343678947 is an apocalyptic number.

343678947 is a deficient number, since it is larger than the sum of its proper divisors (116034333).

343678947 is a wasteful number, since it uses less digits than its factorization.

343678947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368673.

The product of its digits is 3048192, while the sum is 51.

The square root of 343678947 is about 18538.5799617986. The cubic root of 343678947 is about 700.4615642954.

The spelling of 343678947 in words is "three hundred forty-three million, six hundred seventy-eight thousand, nine hundred forty-seven".