65349009 has 24 divisors (see below), whose sum is σ = 103389312. Its totient is φ = 39445920.

The previous prime is 65349007. The next prime is 65349017. The reversal of 65349009 is 90094356.

65349009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65349009 - 2¹ = 65349007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65349001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26232 + ... + 28614.

It is an arithmetic number, because the mean of its divisors is an integer number (4307888).

Almost surely, 2^65349009 is an apocalyptic number.

It is an amenable number.

65349009 is a deficient number, since it is larger than the sum of its proper divisors (38040303).

65349009 is a wasteful number, since it uses less digits than its factorization.

65349009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677 (or 2674 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 65349009 is about 8083.8733908937. The cubic root of 65349009 is about 402.7909170816.

The spelling of 65349009 in words is "sixty-five million, three hundred forty-nine thousand, nine".