65974 has 4 divisors (see below), whose sum is σ = 98964. Its totient is φ = 32986.
The previous prime is 65963. The next prime is 65981. The reversal of 65974 is 47956.
It is a semiprime because it is the product of two primes.
It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is an Ulam number.
It is a congruent number.
It is an unprimeable number.
65974 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16492 + ... + 16495.
It is an arithmetic number, because the mean of its divisors is an integer number (24741).
265974 is an apocalyptic number.
65974 is a deficient number, since it is larger than the sum of its proper divisors (32990).
65974 is a wasteful number, since it uses less digits than its factorization.
65974 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32989.
The product of its digits is 7560, while the sum is 31.
The square root of 65974 is about 256.8540441574. The cubic root of 65974 is about 40.4070928304.
The spelling of 65974 in words is "sixty-five thousand, nine hundred seventy-four".
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