87543171 has 12 divisors (see below), whose sum is σ = 127975848. Its totient is φ = 57658464.

The previous prime is 87543151. The next prime is 87543191. The reversal of 87543171 is 17134578.

It is an interprime number because it is at equal distance from previous prime (87543151) and next prime (87543191).

It is not a de Polignac number, because 87543171 - 2⁶ = 87543107 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (87543151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57850 + ... + 59343.

It is an arithmetic number, because the mean of its divisors is an integer number (10664654).

Almost surely, 2^87543171 is an apocalyptic number.

87543171 is a deficient number, since it is larger than the sum of its proper divisors (40432677).

87543171 is a wasteful number, since it uses less digits than its factorization.

87543171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117282 (or 117279 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 87543171 is about 9356.4507693890. The cubic root of 87543171 is about 444.0250016357.

The spelling of 87543171 in words is "eighty-seven million, five hundred forty-three thousand, one hundred seventy-one".