86386666 has 16 divisors (see below), whose sum is σ = 135825984. Its totient is φ = 41128384.

The previous prime is 86386637. The next prime is 86386681. The reversal of 86386666 is 66668368.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6306 + ... + 14578.

It is an arithmetic number, because the mean of its divisors is an integer number (8489124).

Almost surely, 2^86386666 is an apocalyptic number.

86386666 is a deficient number, since it is larger than the sum of its proper divisors (49439318).

86386666 is a wasteful number, since it uses less digits than its factorization.

86386666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8525.

The product of its digits is 1492992, while the sum is 49.

The square root of 86386666 is about 9294.4427482233. The cubic root of 86386666 is about 442.0610365946.

The spelling of 86386666 in words is "eighty-six million, three hundred eighty-six thousand, six hundred sixty-six".