34389217 has 4 divisors (see below), whose sum is σ = 34464276. Its totient is φ = 34314160.

The previous prime is 34389211. The next prime is 34389233. The reversal of 34389217 is 71298343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71298343 = 43 ⋅1658101.

It can be written as a sum of positive squares in 2 ways, for example, as 23126481 + 11262736 = 4809^2 + 3356^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34389217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34389211) 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, 36838 + ... + 37759.

It is an arithmetic number, because the mean of its divisors is an integer number (8616069).

Almost surely, 2^34389217 is an apocalyptic number.

It is an amenable number.

34389217 is a deficient number, since it is larger than the sum of its proper divisors (75059).

34389217 is an equidigital number, since it uses as much as digits as its factorization.

34389217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75058.

The product of its digits is 36288, while the sum is 37.

The square root of 34389217 is about 5864.2320042781. The cubic root of 34389217 is about 325.1926810099.

The spelling of 34389217 in words is "thirty-four million, three hundred eighty-nine thousand, two hundred seventeen".