65669289 has 8 divisors (see below), whose sum is σ = 100067520. Its totient is φ = 37525296.

The previous prime is 65669269. The next prime is 65669333. The reversal of 65669289 is 98296656.

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

It is not a de Polignac number, because 65669289 - 2⁵ = 65669257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65669239) 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, 1563534 + ... + 1563575.

It is an arithmetic number, because the mean of its divisors is an integer number (12508440).

Almost surely, 2^65669289 is an apocalyptic number.

It is an amenable number.

65669289 is a deficient number, since it is larger than the sum of its proper divisors (34398231).

65669289 is a wasteful number, since it uses less digits than its factorization.

65669289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127119.

The product of its digits is 1399680, while the sum is 51.

The square root of 65669289 is about 8103.6589883830. The cubic root of 65669289 is about 403.4478803281.

The spelling of 65669289 in words is "sixty-five million, six hundred sixty-nine thousand, two hundred eighty-nine".