86684223 has 4 divisors (see below), whose sum is σ = 115578968. Its totient is φ = 57789480.

The previous prime is 86684183. The next prime is 86684243. The reversal of 86684223 is 32248668.

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

It is not a de Polignac number, because 86684223 - 2¹⁰ = 86683199 is a prime.

It is a super-2 number, since 2×86684223² = 15028309034227458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86684243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14447368 + ... + 14447373.

It is an arithmetic number, because the mean of its divisors is an integer number (28894742).

Almost surely, 2^86684223 is an apocalyptic number.

86684223 is a deficient number, since it is larger than the sum of its proper divisors (28894745).

86684223 is a wasteful number, since it uses less digits than its factorization.

86684223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28894744.

The product of its digits is 110592, while the sum is 39.

The square root of 86684223 is about 9310.4362411221. The cubic root of 86684223 is about 442.5680115067.

The spelling of 86684223 in words is "eighty-six million, six hundred eighty-four thousand, two hundred twenty-three".