64223205 has 16 divisors (see below), whose sum is σ = 103415424. Its totient is φ = 34032960.

The previous prime is 64223191. The next prime is 64223207. The reversal of 64223205 is 50232246.

It is not a de Polignac number, because 64223205 - 2⁴ = 64223189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64223207) 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 15 ways as a sum of consecutive naturals, for example, 11281 + ... + 15990.

It is an arithmetic number, because the mean of its divisors is an integer number (6463464).

Almost surely, 2^64223205 is an apocalyptic number.

It is an amenable number.

64223205 is a deficient number, since it is larger than the sum of its proper divisors (39192219).

64223205 is a wasteful number, since it uses less digits than its factorization.

64223205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27436.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 64223205 is about 8013.9381704628. The cubic root of 64223205 is about 400.4644708749.

The spelling of 64223205 in words is "sixty-four million, two hundred twenty-three thousand, two hundred five".