64868211 has 12 divisors (see below), whose sum is σ = 97772688. Its totient is φ = 41365104.

The previous prime is 64868203. The next prime is 64868231. The reversal of 64868211 is 11286846.

64868211 is a `hidden beast` number, since 648 + 6 + 8 + 2 + 1 + 1 = 666.

It is not a de Polignac number, because 64868211 - 2³ = 64868203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64868231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156480 + ... + 156893.

It is an arithmetic number, because the mean of its divisors is an integer number (8147724).

Almost surely, 2^64868211 is an apocalyptic number.

64868211 is a deficient number, since it is larger than the sum of its proper divisors (32904477).

64868211 is a wasteful number, since it uses less digits than its factorization.

64868211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313402 (or 313399 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 64868211 is about 8054.0803944336. The cubic root of 64868211 is about 401.8006548586.

The spelling of 64868211 in words is "sixty-four million, eight hundred sixty-eight thousand, two hundred eleven".