68899 has 2 divisors, whose sum is σ = 68900. Its totient is φ = 68898.

The previous prime is 68897. The next prime is 68903. The reversal of 68899 is 99886.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68899 - 2¹ = 68897 is a prime.

Together with 68897, it forms a pair of twin primes.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (68891) 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, 34449 + 34450.

It is an arithmetic number, because the mean of its divisors is an integer number (34450).

2⁶⁸⁸⁹⁹ is an apocalyptic number.

68899 is a deficient number, since it is larger than the sum of its proper divisors (1).

68899 is an equidigital number, since it uses as much as digits as its factorization.

68899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 40.

The square root of 68899 is about 262.4861901129. The cubic root of 68899 is about 40.9956370531.

It can be divided in two parts, 6889 and 9, that multiplied together give a square (62001 = 249²).

The spelling of 68899 in words is "sixty-eight thousand, eight hundred ninety-nine".