87550071 has 16 divisors (see below), whose sum is σ = 134233344. Its totient is φ = 49719744.

The previous prime is 87550063. The next prime is 87550087. The reversal of 87550071 is 17005578.

It is not a de Polignac number, because 87550071 - 2³ = 87550063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87550471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9366 + ... + 16211.

It is an arithmetic number, because the mean of its divisors is an integer number (8389584).

Almost surely, 2^87550071 is an apocalyptic number.

87550071 is a deficient number, since it is larger than the sum of its proper divisors (46683273).

87550071 is a wasteful number, since it uses less digits than its factorization.

87550071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25750.

The product of its (nonzero) digits is 9800, while the sum is 33.

The square root of 87550071 is about 9356.8194916863. The cubic root of 87550071 is about 444.0366670879.

The spelling of 87550071 in words is "eighty-seven million, five hundred fifty thousand, seventy-one".