64379128 has 32 divisors (see below), whose sum is σ = 132168960. Its totient is φ = 29155680.

The previous prime is 64379123. The next prime is 64379131. The reversal of 64379128 is 82197346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64379123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25825 + ... + 28207.

It is an arithmetic number, because the mean of its divisors is an integer number (4130280).

Almost surely, 2^64379128 is an apocalyptic number.

It is an amenable number.

64379128 is an abundant number, since it is smaller than the sum of its proper divisors (67789832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64379128 is a wasteful number, since it uses less digits than its factorization.

64379128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707 (or 2703 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 64379128 is about 8023.6605112629. The cubic root of 64379128 is about 400.7882954552.

The spelling of 64379128 in words is "sixty-four million, three hundred seventy-nine thousand, one hundred twenty-eight".