34406809 has 4 divisors (see below), whose sum is σ = 34654480. Its totient is φ = 34159140.

The previous prime is 34406803. The next prime is 34406819. The reversal of 34406809 is 90860443.

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 34406809 - 2⁷ = 34406681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34406803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123627 + ... + 123904.

It is an arithmetic number, because the mean of its divisors is an integer number (8663620).

Almost surely, 2^34406809 is an apocalyptic number.

It is an amenable number.

34406809 is a deficient number, since it is larger than the sum of its proper divisors (247671).

34406809 is a wasteful number, since it uses less digits than its factorization.

34406809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247670.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 34406809 is about 5865.7317531575. The cubic root of 34406809 is about 325.2481229471.

The spelling of 34406809 in words is "thirty-four million, four hundred six thousand, eight hundred nine".