345643347 has 8 divisors (see below), whose sum is σ = 526694656. Its totient is φ = 197510472.

The previous prime is 345643339. The next prime is 345643349. The reversal of 345643347 is 743346543.

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

It is not a de Polignac number, because 345643347 - 2³ = 345643339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345643349) 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 7 ways as a sum of consecutive naturals, for example, 8229583 + ... + 8229624.

It is an arithmetic number, because the mean of its divisors is an integer number (65836832).

Almost surely, 2^345643347 is an apocalyptic number.

345643347 is a deficient number, since it is larger than the sum of its proper divisors (181051309).

345643347 is a wasteful number, since it uses less digits than its factorization.

345643347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16459217.

The product of its digits is 362880, while the sum is 39.

The square root of 345643347 is about 18591.4858739155. The cubic root of 345643347 is about 701.7935956197.

The spelling of 345643347 in words is "three hundred forty-five million, six hundred forty-three thousand, three hundred forty-seven".