346626643 has 6 divisors (see below), whose sum is σ = 381002972. Its totient is φ = 315115020.

The previous prime is 346626613. The next prime is 346626661.

346626643 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-346626643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 346626596 and 346626605.

It is not an unprimeable number, because it can be changed into a prime (346626613) 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 5 ways as a sum of consecutive naturals, for example, 1432221 + ... + 1432462.

Almost surely, 2^346626643 is an apocalyptic number.

346626643 is a deficient number, since it is larger than the sum of its proper divisors (34376329).

346626643 is a wasteful number, since it uses less digits than its factorization.

346626643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864705 (or 2864694 counting only the distinct ones).

The product of its digits is 373248, while the sum is 40.

The square root of 346626643 is about 18617.9118861380. The cubic root of 346626643 is about 702.4584596537.

The spelling of 346626643 in words is "three hundred forty-six million, six hundred twenty-six thousand, six hundred forty-three".