65418321 has 8 divisors (see below), whose sum is σ = 87261984. Its totient is φ = 43593440.

The previous prime is 65418319. The next prime is 65418337. The reversal of 65418321 is 12381456.

65418321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 65418321 - 2¹ = 65418319 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (65418341) 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 7 ways as a sum of consecutive naturals, for example, 10066 + ... + 15236.

It is an arithmetic number, because the mean of its divisors is an integer number (10907748).

Almost surely, 2^65418321 is an apocalyptic number.

It is an amenable number.

65418321 is a deficient number, since it is larger than the sum of its proper divisors (21843663).

65418321 is a wasteful number, since it uses less digits than its factorization.

65418321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9391.

The product of its digits is 5760, while the sum is 30.

The square root of 65418321 is about 8088.1593085201. The cubic root of 65418321 is about 402.9332726166.

Adding to 65418321 its reverse (12381456), we get a palindrome (77799777).

The spelling of 65418321 in words is "sixty-five million, four hundred eighteen thousand, three hundred twenty-one".