68936977 has 2 divisors, whose sum is σ = 68936978. Its totient is φ = 68936976.

The previous prime is 68936971. The next prime is 68937013. The reversal of 68936977 is 77963986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60590656 + 8346321 = 7784^2 + 2889^2 .

It is a cyclic number.

It is not a de Polignac number, because 68936977 - 2⁷ = 68936849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68936971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34468488 + 34468489.

It is an arithmetic number, because the mean of its divisors is an integer number (34468489).

Almost surely, 2^68936977 is an apocalyptic number.

It is an amenable number.

68936977 is a deficient number, since it is larger than the sum of its proper divisors (1).

68936977 is an equidigital number, since it uses as much as digits as its factorization.

68936977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 55.

The square root of 68936977 is about 8302.8294574801. The cubic root of 68936977 is about 410.0316790910.

The spelling of 68936977 in words is "sixty-eight million, nine hundred thirty-six thousand, nine hundred seventy-seven".