345971 has 8 divisors (see below), whose sum is σ = 369600. Its totient is φ = 322920.

The previous prime is 345953. The next prime is 345979. The reversal of 345971 is 179543.

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 345971 - 2⁶ = 345907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2420 + ... + 2558.

It is an arithmetic number, because the mean of its divisors is an integer number (46200).

2³⁴⁵⁹⁷¹ is an apocalyptic number.

345971 is a deficient number, since it is larger than the sum of its proper divisors (23629).

345971 is a wasteful number, since it uses less digits than its factorization.

345971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289.

The product of its digits is 3780, while the sum is 29.

The square root of 345971 is about 588.1929955380. The cubic root of 345971 is about 70.2015280929.

The spelling of 345971 in words is "three hundred forty-five thousand, nine hundred seventy-one".