64223305 has 16 divisors (see below), whose sum is σ = 79453440. Its totient is φ = 49799232.

The previous prime is 64223303. The next prime is 64223317. The reversal of 64223305 is 50332246.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 64223305 - 2¹ = 64223303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64223305.

It is not an unprimeable number, because it can be changed into a prime (64223303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65932 + ... + 66898.

It is an arithmetic number, because the mean of its divisors is an integer number (4965840).

Almost surely, 2^64223305 is an apocalyptic number.

It is an amenable number.

64223305 is a deficient number, since it is larger than the sum of its proper divisors (15230135).

64223305 is a wasteful number, since it uses less digits than its factorization.

64223305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 64223305 is about 8013.9444095901. The cubic root of 64223305 is about 400.4646787252.

The spelling of 64223305 in words is "sixty-four million, two hundred twenty-three thousand, three hundred five".