345917 has 16 divisors (see below), whose sum is σ = 423360. Its totient is φ = 278400.

The previous prime is 345907. The next prime is 345923. The reversal of 345917 is 719543.

It is a cyclic number.

It is not a de Polignac number, because 345917 - 2⁶ = 345853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345917.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 345917.

It is not an unprimeable number, because it can be changed into a prime (345907) 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 15 ways as a sum of consecutive naturals, for example, 5834 + ... + 5892.

It is an arithmetic number, because the mean of its divisors is an integer number (26460).

2³⁴⁵⁹¹⁷ is an apocalyptic number.

It is an amenable number.

345917 is a deficient number, since it is larger than the sum of its proper divisors (77443).

345917 is a wasteful number, since it uses less digits than its factorization.

345917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124.

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

The square root of 345917 is about 588.1470904459. The cubic root of 345917 is about 70.1978754941.

The spelling of 345917 in words is "three hundred forty-five thousand, nine hundred seventeen".