871987037 has 2 divisors, whose sum is σ = 871987038. Its totient is φ = 871987036.

The previous prime is 871987033. The next prime is 871987049. The reversal of 871987037 is 730789178.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 843960601 + 28026436 = 29051^2 + 5294^2 .

It is a cyclic number.

It is not a de Polignac number, because 871987037 - 2² = 871987033 is a prime.

It is a super-2 number, since 2×871987037² = 1520722785392078738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871987033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435993518 + 435993519.

It is an arithmetic number, because the mean of its divisors is an integer number (435993519).

Almost surely, 2^871987037 is an apocalyptic number.

It is an amenable number.

871987037 is a deficient number, since it is larger than the sum of its proper divisors (1).

871987037 is an equidigital number, since it uses as much as digits as its factorization.

871987037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 592704, while the sum is 50.

The square root of 871987037 is about 29529.4266283651. The cubic root of 871987037 is about 955.3665020561.

The spelling of 871987037 in words is "eight hundred seventy-one million, nine hundred eighty-seven thousand, thirty-seven".