86166705 has 8 divisors (see below), whose sum is σ = 137866752. Its totient is φ = 45955568.

The previous prime is 86166677. The next prime is 86166713. The reversal of 86166705 is 50766168.

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

It is a cyclic number.

It is not a de Polignac number, because 86166705 - 2⁸ = 86166449 is a prime.

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, 2872209 + ... + 2872238.

It is an arithmetic number, because the mean of its divisors is an integer number (17233344).

Almost surely, 2^86166705 is an apocalyptic number.

It is an amenable number.

86166705 is a deficient number, since it is larger than the sum of its proper divisors (51700047).

86166705 is a wasteful number, since it uses less digits than its factorization.

86166705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744455.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 86166705 is about 9282.6022752243. The cubic root of 86166705 is about 441.6855201793.

The spelling of 86166705 in words is "eighty-six million, one hundred sixty-six thousand, seven hundred five".