68677547 has 2 divisors, whose sum is σ = 68677548. Its totient is φ = 68677546.

The previous prime is 68677541. The next prime is 68677573. The reversal of 68677547 is 74577686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68677547 - 2¹⁰ = 68676523 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68677495 and 68677504.

It is not a weakly prime, because it can be changed into another prime (68677541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34338773 + 34338774.

It is an arithmetic number, because the mean of its divisors is an integer number (34338774).

Almost surely, 2^68677547 is an apocalyptic number.

68677547 is a deficient number, since it is larger than the sum of its proper divisors (1).

68677547 is an equidigital number, since it uses as much as digits as its factorization.

68677547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1975680, while the sum is 50.

The square root of 68677547 is about 8287.1917438901. The cubic root of 68677547 is about 409.5166761501.

The spelling of 68677547 in words is "sixty-eight million, six hundred seventy-seven thousand, five hundred forty-seven".