64228065 has 32 divisors (see below), whose sum is σ = 113291136. Its totient is φ = 30812160.

The previous prime is 64228013. The next prime is 64228079. The reversal of 64228065 is 56082246.

It is not a de Polignac number, because 64228065 - 2¹⁰ = 64227041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13999 + ... + 18011.

It is an arithmetic number, because the mean of its divisors is an integer number (3540348).

Almost surely, 2^64228065 is an apocalyptic number.

It is an amenable number.

64228065 is a deficient number, since it is larger than the sum of its proper divisors (49063071).

64228065 is a wasteful number, since it uses less digits than its factorization.

64228065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4129.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 64228065 is about 8014.2413864320. The cubic root of 64228065 is about 400.4745721472.

The spelling of 64228065 in words is "sixty-four million, two hundred twenty-eight thousand, sixty-five".