68801633 has 2 divisors, whose sum is σ = 68801634. Its totient is φ = 68801632.

The previous prime is 68801599. The next prime is 68801651. The reversal of 68801633 is 33610886.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61277584 + 7524049 = 7828^2 + 2743^2 .

It is a cyclic number.

It is not a de Polignac number, because 68801633 - 2⁶ = 68801569 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68801593 and 68801602.

It is not a weakly prime, because it can be changed into another prime (68801233) 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, 34400816 + 34400817.

It is an arithmetic number, because the mean of its divisors is an integer number (34400817).

Almost surely, 2^68801633 is an apocalyptic number.

It is an amenable number.

68801633 is a deficient number, since it is larger than the sum of its proper divisors (1).

68801633 is an equidigital number, since it uses as much as digits as its factorization.

68801633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 68801633 is about 8294.6749785631. The cubic root of 68801633 is about 409.7631648255.

The spelling of 68801633 in words is "sixty-eight million, eight hundred one thousand, six hundred thirty-three".