871440803 has 2 divisors, whose sum is σ = 871440804. Its totient is φ = 871440802.

The previous prime is 871440799. The next prime is 871440841. The reversal of 871440803 is 308044178.

It is a happy number.

871440803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 871440803 - 2² = 871440799 is a prime.

It is not a weakly prime, because it can be changed into another prime (871440103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435720401 + 435720402.

It is an arithmetic number, because the mean of its divisors is an integer number (435720402).

Almost surely, 2^871440803 is an apocalyptic number.

871440803 is a deficient number, since it is larger than the sum of its proper divisors (1).

871440803 is an equidigital number, since it uses as much as digits as its factorization.

871440803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 871440803 is about 29520.1762020487. The cubic root of 871440803 is about 955.1669720750.

It can be divided in two parts, 87 and 1440803, that multiplied together give a triangular number (125349861 = T₁₅₈₃₃).

The spelling of 871440803 in words is "eight hundred seventy-one million, four hundred forty thousand, eight hundred three".