871622077 has 2 divisors, whose sum is σ = 871622078. Its totient is φ = 871622076.

The previous prime is 871622069. The next prime is 871622111. The reversal of 871622077 is 770226178.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 531809721 + 339812356 = 23061^2 + 18434^2 .

It is a cyclic number.

It is not a de Polignac number, because 871622077 - 2³ = 871622069 is a prime.

It is a super-2 number, since 2×871622077² = 1519450090227587858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871622027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435811038 + 435811039.

It is an arithmetic number, because the mean of its divisors is an integer number (435811039).

Almost surely, 2^871622077 is an apocalyptic number.

It is an amenable number.

871622077 is a deficient number, since it is larger than the sum of its proper divisors (1).

871622077 is an equidigital number, since it uses as much as digits as its factorization.

871622077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 871622077 is about 29523.2463831470. The cubic root of 871622077 is about 955.2331976226.

The spelling of 871622077 in words is "eight hundred seventy-one million, six hundred twenty-two thousand, seventy-seven".