788868161 has 2 divisors, whose sum is σ = 788868162. Its totient is φ = 788868160.

The previous prime is 788868127. The next prime is 788868193. The reversal of 788868161 is 161868887.

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., 645922225 + 142945936 = 25415^2 + 11956^2 .

It is a cyclic number.

It is not a de Polignac number, because 788868161 - 2⁶ = 788868097 is a prime.

It is not a weakly prime, because it can be changed into another prime (788868361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394434080 + 394434081.

It is an arithmetic number, because the mean of its divisors is an integer number (394434081).

Almost surely, 2^788868161 is an apocalyptic number.

It is an amenable number.

788868161 is a deficient number, since it is larger than the sum of its proper divisors (1).

788868161 is an equidigital number, since it uses as much as digits as its factorization.

788868161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1032192, while the sum is 53.

The square root of 788868161 is about 28086.7969159888. The cubic root of 788868161 is about 923.9918545442.

The spelling of 788868161 in words is "seven hundred eighty-eight million, eight hundred sixty-eight thousand, one hundred sixty-one".