881610889 has 2 divisors, whose sum is σ = 881610890. Its totient is φ = 881610888.

The previous prime is 881610883. The next prime is 881610893. The reversal of 881610889 is 988016188.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497646864 + 383964025 = 22308^2 + 19595^2 .

It is a cyclic number.

It is not a de Polignac number, because 881610889 - 2³ = 881610881 is a prime.

It is not a weakly prime, because it can be changed into another prime (881610881) 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, 440805444 + 440805445.

It is an arithmetic number, because the mean of its divisors is an integer number (440805445).

Almost surely, 2^881610889 is an apocalyptic number.

It is an amenable number.

881610889 is a deficient number, since it is larger than the sum of its proper divisors (1).

881610889 is an equidigital number, since it uses as much as digits as its factorization.

881610889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 49.

The square root of 881610889 is about 29691.9330627024. The cubic root of 881610889 is about 958.8683457038.

The spelling of 881610889 in words is "eight hundred eighty-one million, six hundred ten thousand, eight hundred eighty-nine".