871852831 has 2 divisors, whose sum is σ = 871852832. Its totient is φ = 871852830.

The previous prime is 871852801. The next prime is 871852847. The reversal of 871852831 is 138258178.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 871852831 - 2¹¹ = 871850783 is a prime.

It is a super-2 number, since 2×871852831² = 1520254717845429122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871852801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435926415 + 435926416.

It is an arithmetic number, because the mean of its divisors is an integer number (435926416).

Almost surely, 2^871852831 is an apocalyptic number.

871852831 is a deficient number, since it is larger than the sum of its proper divisors (1).

871852831 is an equidigital number, since it uses as much as digits as its factorization.

871852831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 43.

The square root of 871852831 is about 29527.1541297159. The cubic root of 871852831 is about 955.3174866122.

The spelling of 871852831 in words is "eight hundred seventy-one million, eight hundred fifty-two thousand, eight hundred thirty-one".