86684222 has 4 divisors (see below), whose sum is σ = 130026336. Its totient is φ = 43342110.

The previous prime is 86684183. The next prime is 86684243. The reversal of 86684222 is 22248668.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21671054 + ... + 21671057.

It is an arithmetic number, because the mean of its divisors is an integer number (32506584).

Almost surely, 2^86684222 is an apocalyptic number.

86684222 is a deficient number, since it is larger than the sum of its proper divisors (43342114).

86684222 is a wasteful number, since it uses less digits than its factorization.

86684222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43342113.

The product of its digits is 73728, while the sum is 38.

The square root of 86684222 is about 9310.4361874189. The cubic root of 86684222 is about 442.5680098049.

The spelling of 86684222 in words is "eighty-six million, six hundred eighty-four thousand, two hundred twenty-two".