64328415 has 16 divisors (see below), whose sum is σ = 103946976. Its totient is φ = 33968000.

The previous prime is 64328413. The next prime is 64328417. The reversal of 64328415 is 51482346.

It is an interprime number because it is at equal distance from previous prime (64328413) and next prime (64328417).

It is not a de Polignac number, because 64328415 - 2¹ = 64328413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64328413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19716 + ... + 22745.

It is an arithmetic number, because the mean of its divisors is an integer number (6496686).

Almost surely, 2^64328415 is an apocalyptic number.

64328415 is a deficient number, since it is larger than the sum of its proper divisors (39618561).

64328415 is a wasteful number, since it uses less digits than its factorization.

64328415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42570.

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

The square root of 64328415 is about 8020.4996727137. The cubic root of 64328415 is about 400.6830309247.

The spelling of 64328415 in words is "sixty-four million, three hundred twenty-eight thousand, four hundred fifteen".