86664211 has 4 divisors (see below), whose sum is σ = 87246000. Its totient is φ = 86082424.

The previous prime is 86664197. The next prime is 86664223. The reversal of 86664211 is 11246668.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86664211 - 2¹⁹ = 86139923 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (86664311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290671 + ... + 290968.

It is an arithmetic number, because the mean of its divisors is an integer number (21811500).

Almost surely, 2^86664211 is an apocalyptic number.

86664211 is a deficient number, since it is larger than the sum of its proper divisors (581789).

86664211 is a wasteful number, since it uses less digits than its factorization.

86664211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581788.

The product of its digits is 13824, while the sum is 34.

The square root of 86664211 is about 9309.3614711214. The cubic root of 86664211 is about 442.5339516652.

The spelling of 86664211 in words is "eighty-six million, six hundred sixty-four thousand, two hundred eleven".