65002609 has 8 divisors (see below), whose sum is σ = 74363840. Its totient is φ = 55660176.

The previous prime is 65002549. The next prime is 65002621. The reversal of 65002609 is 90620056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65002609 - 2⁷ = 65002481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65002699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3727 + ... + 11995.

It is an arithmetic number, because the mean of its divisors is an integer number (9295480).

Almost surely, 2^65002609 is an apocalyptic number.

It is an amenable number.

65002609 is a deficient number, since it is larger than the sum of its proper divisors (9361231).

65002609 is a wasteful number, since it uses less digits than its factorization.

65002609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9399.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 65002609 is about 8062.4195499862. The cubic root of 65002609 is about 402.0779553118.

The spelling of 65002609 in words is "sixty-five million, two thousand, six hundred nine".