881736641 has 2 divisors, whose sum is σ = 881736642. Its totient is φ = 881736640.

The previous prime is 881736607. The next prime is 881736659. The reversal of 881736641 is 146637188.

881736641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 628003600 + 253733041 = 25060^2 + 15929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-881736641 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 881736592 and 881736601.

It is not a weakly prime, because it can be changed into another prime (881756641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440868320 + 440868321.

It is an arithmetic number, because the mean of its divisors is an integer number (440868321).

Almost surely, 2^881736641 is an apocalyptic number.

It is an amenable number.

881736641 is a deficient number, since it is larger than the sum of its proper divisors (1).

881736641 is an equidigital number, since it uses as much as digits as its factorization.

881736641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 44.

The square root of 881736641 is about 29694.0505994046. The cubic root of 881736641 is about 958.9139341756.

The spelling of 881736641 in words is "eight hundred eighty-one million, seven hundred thirty-six thousand, six hundred forty-one".