343647673 has 4 divisors (see below), whose sum is σ = 363862260. Its totient is φ = 323433088.

The previous prime is 343647671. The next prime is 343647677. The reversal of 343647673 is 376746343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 376746343 = 5813 ⋅64811.

It can be written as a sum of positive squares in 2 ways, for example, as 97377424 + 246270249 = 9868^2 + 15693^2 .

It is a cyclic number.

It is not a de Polignac number, because 343647673 - 2¹ = 343647671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343647671) 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, 10107268 + ... + 10107301.

It is an arithmetic number, because the mean of its divisors is an integer number (90965565).

Almost surely, 2^343647673 is an apocalyptic number.

It is an amenable number.

343647673 is a deficient number, since it is larger than the sum of its proper divisors (20214587).

343647673 is a wasteful number, since it uses less digits than its factorization.

343647673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20214586.

The product of its digits is 762048, while the sum is 43.

The square root of 343647673 is about 18537.7364583705. The cubic root of 343647673 is about 700.4403168496.

The spelling of 343647673 in words is "three hundred forty-three million, six hundred forty-seven thousand, six hundred seventy-three".