68489567 has 2 divisors, whose sum is σ = 68489568. Its totient is φ = 68489566.

The previous prime is 68489467. The next prime is 68489569. The reversal of 68489567 is 76598486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68489567 - 2¹⁴ = 68473183 is a prime.

Together with 68489569, 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 (68489569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34244783 + 34244784.

It is an arithmetic number, because the mean of its divisors is an integer number (34244784).

Almost surely, 2^68489567 is an apocalyptic number.

68489567 is a deficient number, since it is larger than the sum of its proper divisors (1).

68489567 is an equidigital number, since it uses as much as digits as its factorization.

68489567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 53.

The square root of 68489567 is about 8275.8423740427. The cubic root of 68489567 is about 409.1427000303.

The spelling of 68489567 in words is "sixty-eight million, four hundred eighty-nine thousand, five hundred sixty-seven".