64912 has 10 divisors (see below), whose sum is σ = 125798. Its totient is φ = 32448.
The previous prime is 64901. The next prime is 64919. The reversal of 64912 is 21946.
It can be written as a sum of positive squares in only one way, i.e., 55696 + 9216 = 236^2 + 96^2 .
It is a super-3 number, since 3×649123 = 820533328195584, which contains 333 as substring.
It is a nialpdrome in base 16.
It is not an unprimeable number, because it can be changed into a prime (64919) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2013 + ... + 2044.
264912 is an apocalyptic number.
It is an amenable number.
64912 is a deficient number, since it is larger than the sum of its proper divisors (60886).
64912 is a wasteful number, since it uses less digits than its factorization.
64912 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4065 (or 4059 counting only the distinct ones).
The product of its digits is 432, while the sum is 22.
The square root of 64912 is about 254.7783350287. The cubic root of 64912 is about 40.1891045776.
The spelling of 64912 in words is "sixty-four thousand, nine hundred twelve".
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