64936 has 8 divisors (see below), whose sum is σ = 121770. Its totient is φ = 32464.
The previous prime is 64927. The next prime is 64937. The reversal of 64936 is 63946.
It can be written as a sum of positive squares in only one way, i.e., 42436 + 22500 = 206^2 + 150^2 .
It is a tau number, because it is divible by the number of its divisors (8).
It is a nialpdrome in base 16.
It is not an unprimeable number, because it can be changed into a prime (64937) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4051 + ... + 4066.
264936 is an apocalyptic number.
It is an amenable number.
64936 is a deficient number, since it is larger than the sum of its proper divisors (56834).
64936 is a wasteful number, since it uses less digits than its factorization.
64936 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8123 (or 8119 counting only the distinct ones).
The product of its digits is 3888, while the sum is 28.
The square root of 64936 is about 254.8254304421. The cubic root of 64936 is about 40.1940570243.
Subtracting from 64936 its reverse (63946), we obtain a triangular number (990 = T44).
It can be divided in two parts, 64 and 936, that added together give a cube (1000 = 103).
The spelling of 64936 in words is "sixty-four thousand, nine hundred thirty-six".
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