34347809 has 4 divisors (see below), whose sum is σ = 35841216. Its totient is φ = 32854404.

The previous prime is 34347743. The next prime is 34347811. The reversal of 34347809 is 90874343.

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 an emirpimes, since its reverse is a distinct semiprime: 90874343 = 7 ⋅12982049.

It is a cyclic number.

It is not a de Polignac number, because 34347809 - 2²⁴ = 17570593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34347889) 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, 746669 + ... + 746714.

It is an arithmetic number, because the mean of its divisors is an integer number (8960304).

Almost surely, 2^34347809 is an apocalyptic number.

It is an amenable number.

34347809 is a deficient number, since it is larger than the sum of its proper divisors (1493407).

34347809 is a wasteful number, since it uses less digits than its factorization.

34347809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493406.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 34347809 is about 5860.7003847663. The cubic root of 34347809 is about 325.0621072627.

The spelling of 34347809 in words is "thirty-four million, three hundred forty-seven thousand, eight hundred nine".