26979 has 12 divisors (see below), whose sum is σ = 39816. Its totient is φ = 16192.
The previous prime is 26959. The next prime is 26981. The reversal of 26979 is 97962.
It is not a de Polignac number, because 26979 - 25 = 26947 is a prime.
It is not an unprimeable number, because it can be changed into a prime (26959) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1162 + ... + 1184.
It is an arithmetic number, because the mean of its divisors is an integer number (3318).
226979 is an apocalyptic number.
26979 is a deficient number, since it is larger than the sum of its proper divisors (12837).
26979 is a wasteful number, since it uses less digits than its factorization.
26979 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 66 (or 43 counting only the distinct ones).
The product of its digits is 6804, while the sum is 33.
The square root of 26979 is about 164.2528538565. The cubic root of 26979 is about 29.9922202049.
The spelling of 26979 in words is "twenty-six thousand, nine hundred seventy-nine".
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