34689517 has 2 divisors, whose sum is σ = 34689518. Its totient is φ = 34689516.

The previous prime is 34689511. The next prime is 34689547. The reversal of 34689517 is 71598643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34644996 + 44521 = 5886^2 + 211^2 .

It is an emirp because it is prime and its reverse (71598643) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34689517 - 2³ = 34689509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34689511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17344758 + 17344759.

It is an arithmetic number, because the mean of its divisors is an integer number (17344759).

Almost surely, 2^34689517 is an apocalyptic number.

It is an amenable number.

34689517 is a deficient number, since it is larger than the sum of its proper divisors (1).

34689517 is an equidigital number, since it uses as much as digits as its factorization.

34689517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 34689517 is about 5889.7807259693. The cubic root of 34689517 is about 326.1365086279.

The spelling of 34689517 in words is "thirty-four million, six hundred eighty-nine thousand, five hundred seventeen".