881084681 has 2 divisors, whose sum is σ = 881084682. Its totient is φ = 881084680.

The previous prime is 881084657. The next prime is 881084683. The reversal of 881084681 is 186480188.

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., 853574656 + 27510025 = 29216^2 + 5245^2 .

It is a cyclic number.

It is not a de Polignac number, because 881084681 - 2²⁶ = 813975817 is a prime.

It is a super-2 number, since 2×881084681² = 1552620430185743522, which contains 22 as substring.

Together with 881084683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (881084683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440542340 + 440542341.

It is an arithmetic number, because the mean of its divisors is an integer number (440542341).

Almost surely, 2^881084681 is an apocalyptic number.

It is an amenable number.

881084681 is a deficient number, since it is larger than the sum of its proper divisors (1).

881084681 is an equidigital number, since it uses as much as digits as its factorization.

881084681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98304, while the sum is 44.

The square root of 881084681 is about 29683.0706127247. The cubic root of 881084681 is about 958.6775341562.

The spelling of 881084681 in words is "eight hundred eighty-one million, eighty-four thousand, six hundred eighty-one".