34217639 has 2 divisors, whose sum is σ = 34217640. Its totient is φ = 34217638.

The previous prime is 34217633. The next prime is 34217641. The reversal of 34217639 is 93671243.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34217639 - 2²⁰ = 33169063 is a prime.

Together with 34217641, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 34217599 and 34217608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34217633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17108819 + 17108820.

It is an arithmetic number, because the mean of its divisors is an integer number (17108820).

Almost surely, 2^34217639 is an apocalyptic number.

34217639 is a deficient number, since it is larger than the sum of its proper divisors (1).

34217639 is an equidigital number, since it uses as much as digits as its factorization.

34217639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 35.

The square root of 34217639 is about 5849.5845151600. The cubic root of 34217639 is about 324.6509514904.

The spelling of 34217639 in words is "thirty-four million, two hundred seventeen thousand, six hundred thirty-nine".