86122198 has 4 divisors (see below), whose sum is σ = 129183300. Its totient is φ = 43061098.

The previous prime is 86122177. The next prime is 86122207. The reversal of 86122198 is 89122168.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21530548 + ... + 21530551.

It is an arithmetic number, because the mean of its divisors is an integer number (32295825).

Almost surely, 2^86122198 is an apocalyptic number.

86122198 is a deficient number, since it is larger than the sum of its proper divisors (43061102).

86122198 is a wasteful number, since it uses less digits than its factorization.

86122198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43061101.

The product of its digits is 13824, while the sum is 37.

The square root of 86122198 is about 9280.2046313645. The cubic root of 86122198 is about 441.6094603175.

It can be divided in two parts, 86122 and 198, that added together give a triangular number (86320 = T₄₁₅).

The spelling of 86122198 in words is "eighty-six million, one hundred twenty-two thousand, one hundred ninety-eight".