34638217 has 2 divisors, whose sum is σ = 34638218. Its totient is φ = 34638216.

The previous prime is 34638211. The next prime is 34638221. The reversal of 34638217 is 71283643.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20620681 + 14017536 = 4541^2 + 3744^2 .

It is an emirp because it is prime and its reverse (71283643) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34638217 - 2¹¹ = 34636169 is a prime.

It is not a weakly prime, because it can be changed into another prime (34638211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17319108 + 17319109.

It is an arithmetic number, because the mean of its divisors is an integer number (17319109).

Almost surely, 2^34638217 is an apocalyptic number.

It is an amenable number.

34638217 is a deficient number, since it is larger than the sum of its proper divisors (1).

34638217 is an equidigital number, since it uses as much as digits as its factorization.

34638217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The square root of 34638217 is about 5885.4241138596. The cubic root of 34638217 is about 325.9756621775.

The spelling of 34638217 in words is "thirty-four million, six hundred thirty-eight thousand, two hundred seventeen".