Multipling 37975 by its sum of digits (31), we get a square (1177225 = 10852).
37975 divided by its sum of digits (31) gives a triangular number (1225 = T49).
37975 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an Ulam number.
It is a nialpdrome in base 14.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 37975.
It is an unprimeable number.
237975 is an apocalyptic number.
37975 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
37975 is a wasteful number, since it uses less digits than its factorization.
37975 is an evil number, because the sum of its binary digits is even.
The square root of 37975 is about 194.8717526991. The cubic root of 37975 is about 33.6123796975.
The spelling of 37975 in words is "thirty-seven thousand, nine hundred seventy-five".