871026089 has 2 divisors, whose sum is σ = 871026090. Its totient is φ = 871026088.

The previous prime is 871026061. The next prime is 871026131. The reversal of 871026089 is 980620178.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 549433600 + 321592489 = 23440^2 + 17933^2 .

It is a cyclic number.

It is not a de Polignac number, because 871026089 - 2¹⁶ = 870960553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (871026019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435513044 + 435513045.

It is an arithmetic number, because the mean of its divisors is an integer number (435513045).

Almost surely, 2^871026089 is an apocalyptic number.

It is an amenable number.

871026089 is a deficient number, since it is larger than the sum of its proper divisors (1).

871026089 is an equidigital number, since it uses as much as digits as its factorization.

871026089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 871026089 is about 29513.1511194586. The cubic root of 871026089 is about 955.0154284214.

The spelling of 871026089 in words is "eight hundred seventy-one million, twenty-six thousand, eighty-nine".