68877563 has 2 divisors, whose sum is σ = 68877564. Its totient is φ = 68877562.

The previous prime is 68877547. The next prime is 68877569. The reversal of 68877563 is 36577886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68877563 - 2⁴ = 68877547 is a prime.

It is not a weakly prime, because it can be changed into another prime (68877569) 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, 34438781 + 34438782.

It is an arithmetic number, because the mean of its divisors is an integer number (34438782).

Almost surely, 2^68877563 is an apocalyptic number.

68877563 is a deficient number, since it is larger than the sum of its proper divisors (1).

68877563 is an equidigital number, since it uses as much as digits as its factorization.

68877563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 50.

The square root of 68877563 is about 8299.2507493147. The cubic root of 68877563 is about 409.9138486447.

The spelling of 68877563 in words is "sixty-eight million, eight hundred seventy-seven thousand, five hundred sixty-three".