65321089 has 8 divisors (see below), whose sum is σ = 69310080. Its totient is φ = 61348416.

The previous prime is 65321059. The next prime is 65321129. The reversal of 65321089 is 98012356.

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 65321089 - 2⁷ = 65320961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65321059) 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, 4732 + ... + 12370.

It is an arithmetic number, because the mean of its divisors is an integer number (8663760).

Almost surely, 2^65321089 is an apocalyptic number.

It is an amenable number.

65321089 is a deficient number, since it is larger than the sum of its proper divisors (3988991).

65321089 is a wasteful number, since it uses less digits than its factorization.

65321089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8159.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 65321089 is about 8082.1463114695. The cubic root of 65321089 is about 402.7335455185.

The spelling of 65321089 in words is "sixty-five million, three hundred twenty-one thousand, eighty-nine".