79984 has 10 divisors (see below), whose sum is σ = 155000. Its totient is φ = 39984.
The previous prime is 79979. The next prime is 79987. The reversal of 79984 is 48997.
It is a happy number.
79984 is nontrivially palindromic in base 14.
79984 is an esthetic number in base 14, because in such base its adjacent digits differ by 1.
79984 is an undulating number in base 14.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (79987) by changing a digit.
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, 2484 + ... + 2515.
It is an arithmetic number, because the mean of its divisors is an integer number (15500).
279984 is an apocalyptic number.
It is an amenable number.
79984 is a deficient number, since it is larger than the sum of its proper divisors (75016).
79984 is a wasteful number, since it uses less digits than its factorization.
79984 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5007 (or 5001 counting only the distinct ones).
The product of its digits is 18144, while the sum is 37.
The square root of 79984 is about 282.8144267890. The cubic root of 79984 is about 43.0858210295.
The spelling of 79984 in words is "seventy-nine thousand, nine hundred eighty-four".
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