867471089 has 2 divisors, whose sum is σ = 867471090. Its totient is φ = 867471088.

The previous prime is 867471083. The next prime is 867471091. The reversal of 867471089 is 980174768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 864830464 + 2640625 = 29408^2 + 1625^2 .

It is a cyclic number.

It is not a de Polignac number, because 867471089 - 2²⁴ = 850693873 is a prime.

Together with 867471091, 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 (867471083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433735544 + 433735545.

It is an arithmetic number, because the mean of its divisors is an integer number (433735545).

Almost surely, 2^867471089 is an apocalyptic number.

It is an amenable number.

867471089 is a deficient number, since it is larger than the sum of its proper divisors (1).

867471089 is an equidigital number, since it uses as much as digits as its factorization.

867471089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 867471089 is about 29452.8621529385. The cubic root of 867471089 is about 953.7143922917.

The spelling of 867471089 in words is "eight hundred sixty-seven million, four hundred seventy-one thousand, eighty-nine".