86666684 has 24 divisors (see below), whose sum is σ = 166813248. Its totient is φ = 39147840.

The previous prime is 86666677. The next prime is 86666707. The reversal of 86666684 is 48666668.

It is a super-2 number, since 2×86666684² = 15022228231111712, which contains 22 as substring.

It is a congruent number.

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, 15287 + ... + 20174.

It is an arithmetic number, because the mean of its divisors is an integer number (6950552).

Almost surely, 2^86666684 is an apocalyptic number.

It is an amenable number.

86666684 is a deficient number, since it is larger than the sum of its proper divisors (80146564).

86666684 is a wasteful number, since it uses less digits than its factorization.

86666684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35525 (or 35523 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 50.

The square root of 86666684 is about 9309.4942934619. The cubic root of 86666684 is about 442.5381609231.

The spelling of 86666684 in words is "eighty-six million, six hundred sixty-six thousand, six hundred eighty-four".