343658387 has 8 divisors (see below), whose sum is σ = 360213504. Its totient is φ = 327237768.

The previous prime is 343658363. The next prime is 343658431. The reversal of 343658387 is 783856343.

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

It is a cyclic number.

It is not a de Polignac number, because 343658387 - 2⁸ = 343658131 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343658327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28373 + ... + 38630.

It is an arithmetic number, because the mean of its divisors is an integer number (45026688).

Almost surely, 2^343658387 is an apocalyptic number.

343658387 is a deficient number, since it is larger than the sum of its proper divisors (16555117).

343658387 is a wasteful number, since it uses less digits than its factorization.

343658387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67249.

The product of its digits is 1451520, while the sum is 47.

The square root of 343658387 is about 18538.0254342257. The cubic root of 343658387 is about 700.4475960487.

The spelling of 343658387 in words is "three hundred forty-three million, six hundred fifty-eight thousand, three hundred eighty-seven".