68798761 has 2 divisors, whose sum is σ = 68798762. Its totient is φ = 68798760.

The previous prime is 68798713. The next prime is 68798801. The reversal of 68798761 is 16789786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64304361 + 4494400 = 8019^2 + 2120^2 .

It is a cyclic number.

It is not a de Polignac number, because 68798761 - 2¹¹ = 68796713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68798699 and 68798708.

It is not a weakly prime, because it can be changed into another prime (68798461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34399380 + 34399381.

It is an arithmetic number, because the mean of its divisors is an integer number (34399381).

Almost surely, 2^68798761 is an apocalyptic number.

It is an amenable number.

68798761 is a deficient number, since it is larger than the sum of its proper divisors (1).

68798761 is an equidigital number, since it uses as much as digits as its factorization.

68798761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 52.

The square root of 68798761 is about 8294.5018536377. The cubic root of 68798761 is about 409.7574631382.

The spelling of 68798761 in words is "sixty-eight million, seven hundred ninety-eight thousand, seven hundred sixty-one".