34623209 has 2 divisors, whose sum is σ = 34623210. Its totient is φ = 34623208.

The previous prime is 34623179. The next prime is 34623223. The reversal of 34623209 is 90232643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34515625 + 107584 = 5875^2 + 328^2 .

It is an emirp because it is prime and its reverse (90232643) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34623209 - 2²⁰ = 33574633 is a prime.

It is not a weakly prime, because it can be changed into another prime (34623289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17311604 + 17311605.

It is an arithmetic number, because the mean of its divisors is an integer number (17311605).

Almost surely, 2^34623209 is an apocalyptic number.

It is an amenable number.

34623209 is a deficient number, since it is larger than the sum of its proper divisors (1).

34623209 is an equidigital number, since it uses as much as digits as its factorization.

34623209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 34623209 is about 5884.1489614047. The cubic root of 34623209 is about 325.9285759444.

The spelling of 34623209 in words is "thirty-four million, six hundred twenty-three thousand, two hundred nine".