80975 has 12 divisors (see below), whose sum is σ = 104160. Its totient is φ = 62400.
The previous prime is 80963. The next prime is 80989. The reversal of 80975 is 57908.
It is a happy number.
It is not a de Polignac number, because 80975 - 26 = 80911 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 986 + ... + 1064.
It is an arithmetic number, because the mean of its divisors is an integer number (8680).
280975 is an apocalyptic number.
80975 is a deficient number, since it is larger than the sum of its proper divisors (23185).
80975 is a wasteful number, since it uses less digits than its factorization.
80975 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 130 (or 125 counting only the distinct ones).
The product of its (nonzero) digits is 2520, while the sum is 29.
The square root of 80975 is about 284.5610655026. The cubic root of 80975 is about 43.2630352636.
The spelling of 80975 in words is "eighty thousand, nine hundred seventy-five".
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