86660187 has 8 divisors (see below), whose sum is σ = 115815504. Its totient is φ = 57639168.

The previous prime is 86660177. The next prime is 86660227. The reversal of 86660187 is 78106668.

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

It is not a de Polignac number, because 86660187 - 2⁷ = 86660059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86660107) 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 7 ways as a sum of consecutive naturals, for example, 32058 + ... + 34655.

It is an arithmetic number, because the mean of its divisors is an integer number (14476938).

Almost surely, 2^86660187 is an apocalyptic number.

86660187 is a deficient number, since it is larger than the sum of its proper divisors (29155317).

86660187 is a wasteful number, since it uses less digits than its factorization.

86660187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67149.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 86660187 is about 9309.1453420816. The cubic root of 86660187 is about 442.5271023012.

The spelling of 86660187 in words is "eighty-six million, six hundred sixty thousand, one hundred eighty-seven".