871451629 has 2 divisors, whose sum is σ = 871451630. Its totient is φ = 871451628.

The previous prime is 871451573. The next prime is 871451641. The reversal of 871451629 is 926154178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 864242404 + 7209225 = 29398^2 + 2685^2 .

It is a cyclic number.

It is not a de Polignac number, because 871451629 - 2¹⁷ = 871320557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871451729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435725814 + 435725815.

It is an arithmetic number, because the mean of its divisors is an integer number (435725815).

Almost surely, 2^871451629 is an apocalyptic number.

It is an amenable number.

871451629 is a deficient number, since it is larger than the sum of its proper divisors (1).

871451629 is an equidigital number, since it uses as much as digits as its factorization.

871451629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 43.

The square root of 871451629 is about 29520.3595675933. The cubic root of 871451629 is about 955.1709274383.

The spelling of 871451629 in words is "eight hundred seventy-one million, four hundred fifty-one thousand, six hundred twenty-nine".