37986 has 16 divisors (see below), whose sum is σ = 81984. Its totient is φ = 11664.
The previous prime is 37967. The next prime is 37987. The reversal of 37986 is 68973.
It is a happy number.
It is a nialpdrome in base 14.
It is not an unprimeable number, because it can be changed into a prime (37987) 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, 166 + ... + 321.
It is an arithmetic number, because the mean of its divisors is an integer number (5124).
237986 is an apocalyptic number.
37986 is an abundant number, since it is smaller than the sum of its proper divisors (43998).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40992).
37986 is a wasteful number, since it uses less digits than its factorization.
37986 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 505.
The product of its digits is 9072, while the sum is 33.
The square root of 37986 is about 194.8999743458. The cubic root of 37986 is about 33.6156248191.
It can be divided in two parts, 379 and 86, that added together give a triangular number (465 = T30).
The spelling of 37986 in words is "thirty-seven thousand, nine hundred eighty-six".
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