64028895 has 32 divisors (see below), whose sum is σ = 122176512. Its totient is φ = 27996672.

The previous prime is 64028891. The next prime is 64028903. The reversal of 64028895 is 59882046.

64028895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64028895 - 2² = 64028891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64028891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10842 + ... + 15671.

It is an arithmetic number, because the mean of its divisors is an integer number (3818016).

Almost surely, 2^64028895 is an apocalyptic number.

64028895 is a deficient number, since it is larger than the sum of its proper divisors (58147617).

64028895 is a wasteful number, since it uses less digits than its factorization.

64028895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26551.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 64028895 is about 8001.8057337079. The cubic root of 64028895 is about 400.0601888595.

The spelling of 64028895 in words is "sixty-four million, twenty-eight thousand, eight hundred ninety-five".