346606643 has 4 divisors (see below), whose sum is σ = 348057120. Its totient is φ = 345156168.

The previous prime is 346606633. The next prime is 346606657.

346606643 is nontrivially palindromic in base 10.

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 346606643 - 2⁴ = 346606627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 346606597 and 346606606.

It is not an unprimeable number, because it can be changed into a prime (346606613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724880 + ... + 725357.

It is an arithmetic number, because the mean of its divisors is an integer number (87014280).

Almost surely, 2^346606643 is an apocalyptic number.

346606643 is a deficient number, since it is larger than the sum of its proper divisors (1450477).

346606643 is a wasteful number, since it uses less digits than its factorization.

346606643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450476.

The product of its (nonzero) digits is 186624, while the sum is 38.

The square root of 346606643 is about 18617.3747612277. The cubic root of 346606643 is about 702.4449490175. Note that the first 3 decimals are identical.

The spelling of 346606643 in words is "three hundred forty-six million, six hundred six thousand, six hundred forty-three".