871973 has 2 divisors, whose sum is σ = 871974. Its totient is φ = 871972.

The previous prime is 871963. The next prime is 871987. The reversal of 871973 is 379178.

871973 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 can be written as a sum of positive squares in only one way, i.e., 693889 + 178084 = 833^2 + 422^2 .

It is a cyclic number.

It is not a de Polignac number, because 871973 - 2⁴ = 871957 is a prime.

It is a plaindrome in base 14 and base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435986 + 435987.

It is an arithmetic number, because the mean of its divisors is an integer number (435987).

2⁸⁷¹⁹⁷³ is an apocalyptic number.

It is an amenable number.

871973 is a deficient number, since it is larger than the sum of its proper divisors (1).

871973 is an equidigital number, since it uses as much as digits as its factorization.

871973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 35.

The square root of 871973 is about 933.7949453708. The cubic root of 871973 is about 95.5361375622.

The spelling of 871973 in words is "eight hundred seventy-one thousand, nine hundred seventy-three".