871872577 has 2 divisors, whose sum is σ = 871872578. Its totient is φ = 871872576.

The previous prime is 871872517. The next prime is 871872581. The reversal of 871872577 is 775278178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 591511041 + 280361536 = 24321^2 + 16744^2 .

It is a cyclic number.

It is not a de Polignac number, because 871872577 - 2¹⁵ = 871839809 is a prime.

It is not a weakly prime, because it can be changed into another prime (871872517) 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, 435936288 + 435936289.

It is an arithmetic number, because the mean of its divisors is an integer number (435936289).

Almost surely, 2^871872577 is an apocalyptic number.

It is an amenable number.

871872577 is a deficient number, since it is larger than the sum of its proper divisors (1).

871872577 is an equidigital number, since it uses as much as digits as its factorization.

871872577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536640, while the sum is 52.

The square root of 871872577 is about 29527.4884980081. The cubic root of 871872577 is about 955.3246986691.

The spelling of 871872577 in words is "eight hundred seventy-one million, eight hundred seventy-two thousand, five hundred seventy-seven".