8479 has 4 divisors (see below), whose sum is σ = 8680. Its totient is φ = 8280.
The previous prime is 8467. The next prime is 8501. The reversal of 8479 is 9748.
8479 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 8479 - 25 = 8447 is a prime.
It is a Duffinian number.
8479 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8419) 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 in 3 ways as a sum of consecutive naturals, for example, 9 + ... + 130.
It is an arithmetic number, because the mean of its divisors is an integer number (2170).
28479 is an apocalyptic number.
8479 is a deficient number, since it is larger than the sum of its proper divisors (201).
8479 is a wasteful number, since it uses less digits than its factorization.
8479 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 200.
The product of its digits is 2016, while the sum is 28.
The square root of 8479 is about 92.0814856527. The cubic root of 8479 is about 20.3914548345.
The spelling of 8479 in words is "eight thousand, four hundred seventy-nine".
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