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16979 is a prime number
BaseRepresentation
bin100001001010011
3212021212
410021103
51020404
6210335
7100334
oct41123
925255
1016979
1111836
1299ab
137961
14628b
15506e
hex4253

16979 has 2 divisors, whose sum is σ = 16980. Its totient is φ = 16978.

The previous prime is 16963. The next prime is 16981. The reversal of 16979 is 97961.

It is a strong prime.

It is an emirp because it is prime and its reverse (97961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16979 - 24 = 16963 is a prime.

Together with 16981, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (16879) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8489 + 8490.

It is an arithmetic number, because the mean of its divisors is an integer number (8490).

216979 is an apocalyptic number.

16979 is a deficient number, since it is larger than the sum of its proper divisors (1).

16979 is an equidigital number, since it uses as much as digits as its factorization.

16979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 32.

The square root of 16979 is about 130.3034918949. The cubic root of 16979 is about 25.7022239139.

The spelling of 16979 in words is "sixteen thousand, nine hundred seventy-nine".