87287171 has 8 divisors (see below), whose sum is σ = 88015200. Its totient is φ = 86562432.

The previous prime is 87287153. The next prime is 87287173. The reversal of 87287171 is 17178278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87287171 - 2¹⁴ = 87270787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87287173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85661 + ... + 86673.

It is an arithmetic number, because the mean of its divisors is an integer number (11001900).

Almost surely, 2^87287171 is an apocalyptic number.

87287171 is a deficient number, since it is larger than the sum of its proper divisors (728029).

87287171 is a wasteful number, since it uses less digits than its factorization.

87287171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645.

The product of its digits is 43904, while the sum is 41.

The square root of 87287171 is about 9342.7603522728. The cubic root of 87287171 is about 443.5917625054.

The spelling of 87287171 in words is "eighty-seven million, two hundred eighty-seven thousand, one hundred seventy-one".