871651741 has 2 divisors, whose sum is σ = 871651742. Its totient is φ = 871651740.

The previous prime is 871651687. The next prime is 871651747. The reversal of 871651741 is 147156178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 715776516 + 155875225 = 26754^2 + 12485^2 .

It is a cyclic number.

It is not a de Polignac number, because 871651741 - 2¹¹ = 871649693 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 871651694 and 871651703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871651747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435825870 + 435825871.

It is an arithmetic number, because the mean of its divisors is an integer number (435825871).

Almost surely, 2^871651741 is an apocalyptic number.

It is an amenable number.

871651741 is a deficient number, since it is larger than the sum of its proper divisors (1).

871651741 is an equidigital number, since it uses as much as digits as its factorization.

871651741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 40.

The square root of 871651741 is about 29523.7487626487. The cubic root of 871651741 is about 955.2440340149.

The spelling of 871651741 in words is "eight hundred seventy-one million, six hundred fifty-one thousand, seven hundred forty-one".