65336289 has 4 divisors (see below), whose sum is σ = 87115056. Its totient is φ = 43557524.

The previous prime is 65336281. The next prime is 65336303. The reversal of 65336289 is 98263356.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65336289 - 2³ = 65336281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65336289.

It is not an unprimeable number, because it can be changed into a prime (65336281) 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, 10889379 + ... + 10889384.

It is an arithmetic number, because the mean of its divisors is an integer number (21778764).

Almost surely, 2^65336289 is an apocalyptic number.

It is an amenable number.

65336289 is a deficient number, since it is larger than the sum of its proper divisors (21778767).

65336289 is a wasteful number, since it uses less digits than its factorization.

65336289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21778766.

The product of its digits is 233280, while the sum is 42.

The square root of 65336289 is about 8083.0866010454. The cubic root of 65336289 is about 402.7647813477.

The spelling of 65336289 in words is "sixty-five million, three hundred thirty-six thousand, two hundred eighty-nine".