34309 has 4 divisors (see below), whose sum is σ = 37440. Its totient is φ = 31180.

The previous prime is 34303. The next prime is 34313. The reversal of 34309 is 90343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 34309 - 2³ = 34301 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1549 + ... + 1570.

It is an arithmetic number, because the mean of its divisors is an integer number (9360).

2³⁴³⁰⁹ is an apocalyptic number.

It is an amenable number.

34309 is a deficient number, since it is larger than the sum of its proper divisors (3131).

34309 is a wasteful number, since it uses less digits than its factorization.

34309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 34309 is about 185.2268878970. The cubic root of 34309 is about 32.4939633759.

It can be divided in two parts, 34 and 309, that added together give a palindrome (343).

The spelling of 34309 in words is "thirty-four thousand, three hundred nine".