87116086 has 4 divisors (see below), whose sum is σ = 130674132. Its totient is φ = 43558042.

The previous prime is 87116069. The next prime is 87116089. The reversal of 87116086 is 68061178.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68061178 = 2 ⋅34030589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87116089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21779020 + ... + 21779023.

It is an arithmetic number, because the mean of its divisors is an integer number (32668533).

Almost surely, 2^87116086 is an apocalyptic number.

87116086 is a deficient number, since it is larger than the sum of its proper divisors (43558046).

87116086 is a wasteful number, since it uses less digits than its factorization.

87116086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43558045.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 87116086 is about 9333.5998414331. The cubic root of 87116086 is about 443.3017560313.

The spelling of 87116086 in words is "eighty-seven million, one hundred sixteen thousand, eighty-six".