34031209 has 4 divisors (see below), whose sum is σ = 34042960. Its totient is φ = 34019460.

The previous prime is 34031203. The next prime is 34031219. The reversal of 34031209 is 90213043.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 34031209 - 2³ = 34031201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34031209.

It is not an unprimeable number, because it can be changed into a prime (34031201) 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 in 3 ways as a sum of consecutive naturals, for example, 1894 + ... + 8464.

It is an arithmetic number, because the mean of its divisors is an integer number (8510740).

Almost surely, 2^34031209 is an apocalyptic number.

It is an amenable number.

34031209 is a deficient number, since it is larger than the sum of its proper divisors (11751).

34031209 is an equidigital number, since it uses as much as digits as its factorization.

34031209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11750.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 34031209 is about 5833.6274306815. The cubic root of 34031209 is about 324.0602724075.

The spelling of 34031209 in words is "thirty-four million, thirty-one thousand, two hundred nine".