87850871 has 2 divisors, whose sum is σ = 87850872. Its totient is φ = 87850870.

The previous prime is 87850843. The next prime is 87850879. The reversal of 87850871 is 17805878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87850871 - 2¹⁰ = 87849847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87850879) 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, 43925435 + 43925436.

It is an arithmetic number, because the mean of its divisors is an integer number (43925436).

Almost surely, 2^87850871 is an apocalyptic number.

87850871 is a deficient number, since it is larger than the sum of its proper divisors (1).

87850871 is an equidigital number, since it uses as much as digits as its factorization.

87850871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125440, while the sum is 44.

The square root of 87850871 is about 9372.8795468629. The cubic root of 87850871 is about 444.5446185287.

The spelling of 87850871 in words is "eighty-seven million, eight hundred fifty thousand, eight hundred seventy-one".