66304241 has 4 divisors (see below), whose sum is σ = 66321984. Its totient is φ = 66286500.

The previous prime is 66304229. The next prime is 66304261. The reversal of 66304241 is 14240366.

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 a de Polignac number, because none of the positive numbers 2^k-66304241 is a prime.

It is a super-3 number, since 3×66304241³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66304241.

It is not an unprimeable number, because it can be changed into a prime (66304211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845 + ... + 11546.

It is an arithmetic number, because the mean of its divisors is an integer number (16580496).

Almost surely, 2^66304241 is an apocalyptic number.

It is an amenable number.

66304241 is a deficient number, since it is larger than the sum of its proper divisors (17743).

66304241 is a wasteful number, since it uses less digits than its factorization.

66304241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17742.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 66304241 is about 8142.7416144687. The cubic root of 66304241 is about 404.7440154451.

The spelling of 66304241 in words is "sixty-six million, three hundred four thousand, two hundred forty-one".