87047271 has 16 divisors (see below), whose sum is σ = 130886400. Its totient is φ = 57164184.

The previous prime is 87047269. The next prime is 87047281. The reversal of 87047271 is 17274078.

It is not a de Polignac number, because 87047271 - 2¹ = 87047269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87047201) 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 in 15 ways as a sum of consecutive naturals, for example, 22251 + ... + 25868.

It is an arithmetic number, because the mean of its divisors is an integer number (8180400).

Almost surely, 2^87047271 is an apocalyptic number.

87047271 is a deficient number, since it is larger than the sum of its proper divisors (43839129).

87047271 is a wasteful number, since it uses less digits than its factorization.

87047271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48195 (or 48189 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 87047271 is about 9329.9127005562. The cubic root of 87047271 is about 443.1850005323.

The spelling of 87047271 in words is "eighty-seven million, forty-seven thousand, two hundred seventy-one".