64020213 has 20 divisors (see below), whose sum is σ = 96064320. Its totient is φ = 42488712.

The previous prime is 64020199. The next prime is 64020217. The reversal of 64020213 is 31202046.

It is a happy number.

64020213 is a `hidden beast` number, since 640 + 2 + 0 + 21 + 3 = 666.

It is not a de Polignac number, because 64020213 - 2⁸ = 64019957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64020217) 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 19 ways as a sum of consecutive naturals, for example, 17706 + ... + 21012.

It is an arithmetic number, because the mean of its divisors is an integer number (4803216).

Almost surely, 2^64020213 is an apocalyptic number.

It is an amenable number.

64020213 is a deficient number, since it is larger than the sum of its proper divisors (32044107).

64020213 is a wasteful number, since it uses less digits than its factorization.

64020213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558 (or 3549 counting only the distinct ones).

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

The square root of 64020213 is about 8001.2632127683. The cubic root of 64020213 is about 400.0421059842.

Adding to 64020213 its reverse (31202046), we get a palindrome (95222259).

The spelling of 64020213 in words is "sixty-four million, twenty thousand, two hundred thirteen".