68804161 has 2 divisors, whose sum is σ = 68804162. Its totient is φ = 68804160.

The previous prime is 68804107. The next prime is 68804173. The reversal of 68804161 is 16140886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43362225 + 25441936 = 6585^2 + 5044^2 .

It is a cyclic number.

It is not a de Polignac number, because 68804161 - 2¹⁹ = 68279873 is a prime.

It is not a weakly prime, because it can be changed into another prime (68804761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34402080 + 34402081.

It is an arithmetic number, because the mean of its divisors is an integer number (34402081).

Almost surely, 2^68804161 is an apocalyptic number.

It is an amenable number.

68804161 is a deficient number, since it is larger than the sum of its proper divisors (1).

68804161 is an equidigital number, since it uses as much as digits as its factorization.

68804161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 68804161 is about 8294.8273640866. The cubic root of 68804161 is about 409.7681834495.

The spelling of 68804161 in words is "sixty-eight million, eight hundred four thousand, one hundred sixty-one".