64928 has 12 divisors (see below), whose sum is σ = 127890. Its totient is φ = 32448.
The previous prime is 64927. The next prime is 64937. The reversal of 64928 is 82946.
It can be written as a sum of positive squares in only one way, i.e., 35344 + 29584 = 188^2 + 172^2 .
It is an Ulam number.
It is a nialpdrome in base 16.
It is a self number, because there is not a number n which added to its sum of digits gives 64928.
It is not an unprimeable number, because it can be changed into a prime (64921) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 983 + ... + 1046.
264928 is an apocalyptic number.
It is an amenable number.
64928 is a deficient number, since it is larger than the sum of its proper divisors (62962).
64928 is a wasteful number, since it uses less digits than its factorization.
64928 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2039 (or 2031 counting only the distinct ones).
The product of its digits is 3456, while the sum is 29.
The square root of 64928 is about 254.8097329381. The cubic root of 64928 is about 40.1924063444.
The spelling of 64928 in words is "sixty-four thousand, nine hundred twenty-eight".
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