87094187 has 4 divisors (see below), whose sum is σ = 87780096. Its totient is φ = 86408280.

The previous prime is 87094151. The next prime is 87094199. The reversal of 87094187 is 78149078.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87094187 - 2¹⁰ = 87093163 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87094387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342764 + ... + 343017.

It is an arithmetic number, because the mean of its divisors is an integer number (21945024).

Almost surely, 2^87094187 is an apocalyptic number.

87094187 is a deficient number, since it is larger than the sum of its proper divisors (685909).

87094187 is a wasteful number, since it uses less digits than its factorization.

87094187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685908.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 87094187 is about 9332.4266404832. The cubic root of 87094187 is about 443.2646075965.

The spelling of 87094187 in words is "eighty-seven million, ninety-four thousand, one hundred eighty-seven".