345173617 has 4 divisors (see below), whose sum is σ = 345262756. Its totient is φ = 345084480.

The previous prime is 345173597. The next prime is 345173651. The reversal of 345173617 is 716371543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 278522721 + 66650896 = 16689^2 + 8164^2 .

It is a cyclic number.

It is not a de Polignac number, because 345173617 - 2¹¹ = 345171569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345173317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38484 + ... + 46597.

It is an arithmetic number, because the mean of its divisors is an integer number (86315689).

Almost surely, 2^345173617 is an apocalyptic number.

It is an amenable number.

345173617 is a deficient number, since it is larger than the sum of its proper divisors (89139).

345173617 is an equidigital number, since it uses as much as digits as its factorization.

345173617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89138.

The product of its digits is 52920, while the sum is 37.

The square root of 345173617 is about 18578.8486457046. The cubic root of 345173617 is about 701.4755385293.

The spelling of 345173617 in words is "three hundred forty-five million, one hundred seventy-three thousand, six hundred seventeen".