86102189 has 4 divisors (see below), whose sum is σ = 89071260. Its totient is φ = 83133120.

The previous prime is 86102153. The next prime is 86102207. The reversal of 86102189 is 98120168.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33292900 + 52809289 = 5770^2 + 7267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86102189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86102119) 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, 1484492 + ... + 1484549.

It is an arithmetic number, because the mean of its divisors is an integer number (22267815).

Almost surely, 2^86102189 is an apocalyptic number.

It is an amenable number.

86102189 is a deficient number, since it is larger than the sum of its proper divisors (2969071).

86102189 is a wasteful number, since it uses less digits than its factorization.

86102189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969070.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 86102189 is about 9279.1265213920. The cubic root of 86102189 is about 441.5752575672.

The spelling of 86102189 in words is "eighty-six million, one hundred two thousand, one hundred eighty-nine".