64300221 has 12 divisors (see below), whose sum is σ = 96081180. Its totient is φ = 41388480.

The previous prime is 64300219. The next prime is 64300241. The reversal of 64300221 is 12200346.

It is a happy number.

64300221 is a `hidden beast` number, since 643 + 0 + 0 + 2 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 39200121 + 25100100 = 6261^2 + 5010^2 .

It is not a de Polignac number, because 64300221 - 2¹ = 64300219 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64300194 and 64300203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64300211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122920 + ... + 123441.

It is an arithmetic number, because the mean of its divisors is an integer number (8006765).

Almost surely, 2^64300221 is an apocalyptic number.

It is an amenable number.

64300221 is a deficient number, since it is larger than the sum of its proper divisors (31780959).

64300221 is a wasteful number, since it uses less digits than its factorization.

64300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246396 (or 246393 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 64300221 is about 8018.7418589203. The cubic root of 64300221 is about 400.6244849556.

Adding to 64300221 its reverse (12200346), we get a palindrome (76500567).

The spelling of 64300221 in words is "sixty-four million, three hundred thousand, two hundred twenty-one".