68932777 has 2 divisors, whose sum is σ = 68932778. Its totient is φ = 68932776.

The previous prime is 68932763. The next prime is 68932789. The reversal of 68932777 is 77723986.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68079001 + 853776 = 8251^2 + 924^2 .

It is a cyclic number.

It is not a de Polignac number, because 68932777 - 2¹⁵ = 68900009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68932777.

It is not a weakly prime, because it can be changed into another prime (68932727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34466388 + 34466389.

It is an arithmetic number, because the mean of its divisors is an integer number (34466389).

Almost surely, 2^68932777 is an apocalyptic number.

It is an amenable number.

68932777 is a deficient number, since it is larger than the sum of its proper divisors (1).

68932777 is an equidigital number, since it uses as much as digits as its factorization.

68932777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 49.

The square root of 68932777 is about 8302.5765278015. The cubic root of 68932777 is about 410.0233518328.

The spelling of 68932777 in words is "sixty-eight million, nine hundred thirty-two thousand, seven hundred seventy-seven".