86109198 has 16 divisors (see below), whose sum is σ = 196821120. Its totient is φ = 24602616.

The previous prime is 86109187. The next prime is 86109209. The reversal of 86109198 is 89190168.

It is an interprime number because it is at equal distance from previous prime (86109187) and next prime (86109209).

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 2050219 = 86109198 / (8 + 6 + 1 + 0 + 9 + 1 + 9 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025068 + ... + 1025151.

It is an arithmetic number, because the mean of its divisors is an integer number (12301320).

Almost surely, 2^86109198 is an apocalyptic number.

86109198 is an abundant number, since it is smaller than the sum of its proper divisors (110711922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86109198 is a wasteful number, since it uses less digits than its factorization.

86109198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050231.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 86109198 is about 9279.5041893412. The cubic root of 86109198 is about 441.5872391325.

The spelling of 86109198 in words is "eighty-six million, one hundred nine thousand, one hundred ninety-eight".