343655947 has 4 divisors (see below), whose sum is σ = 343840720. Its totient is φ = 343471176.

The previous prime is 343655929. The next prime is 343655971. The reversal of 343655947 is 749556343.

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 343655947 - 2²⁷ = 209438219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343655897 and 343655906.

It is not an unprimeable number, because it can be changed into a prime (343655927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89568 + ... + 93325.

It is an arithmetic number, because the mean of its divisors is an integer number (85960180).

Almost surely, 2^343655947 is an apocalyptic number.

343655947 is a deficient number, since it is larger than the sum of its proper divisors (184773).

343655947 is a wasteful number, since it uses less digits than its factorization.

343655947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184772.

The product of its digits is 1360800, while the sum is 46.

The square root of 343655947 is about 18537.9596234321. The cubic root of 343655947 is about 700.4459383016.

The spelling of 343655947 in words is "three hundred forty-three million, six hundred fifty-five thousand, nine hundred forty-seven".