34520609 has 4 divisors (see below), whose sum is σ = 34536516. Its totient is φ = 34504704.

The previous prime is 34520597. The next prime is 34520617. The reversal of 34520609 is 90602543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90602543 = 23 ⋅3939241.

It can be written as a sum of positive squares in 2 ways, for example, as 16483600 + 18037009 = 4060^2 + 4247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34520609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34520699) 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, 4064 + ... + 9249.

It is an arithmetic number, because the mean of its divisors is an integer number (8634129).

Almost surely, 2^34520609 is an apocalyptic number.

It is an amenable number.

34520609 is a deficient number, since it is larger than the sum of its proper divisors (15907).

34520609 is a wasteful number, since it uses less digits than its factorization.

34520609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15906.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 34520609 is about 5875.4241549015. The cubic root of 34520609 is about 325.6063127490.

The spelling of 34520609 in words is "thirty-four million, five hundred twenty thousand, six hundred nine".