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68879 is a prime number
BaseRepresentation
bin10000110100001111
310111111002
4100310033
54201004
61250515
7404546
oct206417
9114432
1068879
1147828
1233a3b
1325475
141b15d
151561e
hex10d0f

68879 has 2 divisors, whose sum is σ = 68880. Its totient is φ = 68878.

The previous prime is 68863. The next prime is 68881. The reversal of 68879 is 97886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68879 - 24 = 68863 is a prime.

Together with 68881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34439 + 34440.

It is an arithmetic number, because the mean of its divisors is an integer number (34440).

268879 is an apocalyptic number.

68879 is a deficient number, since it is larger than the sum of its proper divisors (1).

68879 is an equidigital number, since it uses as much as digits as its factorization.

68879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 68879 is about 262.4480901055. The cubic root of 68879 is about 40.9916699317.

It can be divided in two parts, 688 and 79, that added together give a palindrome (767).

The spelling of 68879 in words is "sixty-eight thousand, eight hundred seventy-nine".