876087881 has 2 divisors, whose sum is σ = 876087882. Its totient is φ = 876087880.

The previous prime is 876087857. The next prime is 876087889. The reversal of 876087881 is 188780678.

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., 831745600 + 44342281 = 28840^2 + 6659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-876087881 is a prime.

It is a super-2 number, since 2×876087881² = 1535059950470140322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (876087889) 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, 438043940 + 438043941.

It is an arithmetic number, because the mean of its divisors is an integer number (438043941).

Almost surely, 2^876087881 is an apocalyptic number.

It is an amenable number.

876087881 is a deficient number, since it is larger than the sum of its proper divisors (1).

876087881 is an equidigital number, since it uses as much as digits as its factorization.

876087881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1204224, while the sum is 53.

The square root of 876087881 is about 29598.7817485788. The cubic root of 876087881 is about 956.8618160787.

The spelling of 876087881 in words is "eight hundred seventy-six million, eighty-seven thousand, eight hundred eighty-one".