64384375 has 24 divisors (see below), whose sum is σ = 87838128. Its totient is φ = 46800000.

The previous prime is 64384367. The next prime is 64384417. The reversal of 64384375 is 57348346.

It is not a de Polignac number, because 64384375 - 2³ = 64384367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33439 + ... + 35311.

It is an arithmetic number, because the mean of its divisors is an integer number (3659922).

Almost surely, 2^64384375 is an apocalyptic number.

64384375 is a deficient number, since it is larger than the sum of its proper divisors (23453753).

64384375 is an equidigital number, since it uses as much as digits as its factorization.

64384375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909 (or 1889 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The square root of 64384375 is about 8023.9874750650. The cubic root of 64384375 is about 400.7991834511.

The spelling of 64384375 in words is "sixty-four million, three hundred eighty-four thousand, three hundred seventy-five".