87106871 has 2 divisors, whose sum is σ = 87106872. Its totient is φ = 87106870.

The previous prime is 87106823. The next prime is 87106889. The reversal of 87106871 is 17860178.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87106871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87106801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43553435 + 43553436.

It is an arithmetic number, because the mean of its divisors is an integer number (43553436).

Almost surely, 2^87106871 is an apocalyptic number.

87106871 is a deficient number, since it is larger than the sum of its proper divisors (1).

87106871 is an equidigital number, since it uses as much as digits as its factorization.

87106871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 38.

The square root of 87106871 is about 9333.1061817596. The cubic root of 87106871 is about 443.2861248970.

The spelling of 87106871 in words is "eighty-seven million, one hundred six thousand, eight hundred seventy-one".