86999222 has 8 divisors (see below), whose sum is σ = 131696400. Its totient is φ = 43100424.

The previous prime is 86999219. The next prime is 86999243. The reversal of 86999222 is 22299968.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199322 + ... + 199757.

It is an arithmetic number, because the mean of its divisors is an integer number (16462050).

Almost surely, 2^86999222 is an apocalyptic number.

86999222 is a deficient number, since it is larger than the sum of its proper divisors (44697178).

86999222 is a wasteful number, since it uses less digits than its factorization.

86999222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399190.

The product of its digits is 279936, while the sum is 47.

The square root of 86999222 is about 9327.3373478180. The cubic root of 86999222 is about 443.1034413397.

The spelling of 86999222 in words is "eighty-six million, nine hundred ninety-nine thousand, two hundred twenty-two".