86188897 has 8 divisors (see below), whose sum is σ = 89349120. Its totient is φ = 83052480.

The previous prime is 86188891. The next prime is 86188909. The reversal of 86188897 is 79888168.

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

It is a cyclic number.

It is not a de Polignac number, because 86188897 - 2¹⁹ = 85664609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86188891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1593 + ... + 13225.

It is an arithmetic number, because the mean of its divisors is an integer number (11168640).

Almost surely, 2^86188897 is an apocalyptic number.

It is an amenable number.

86188897 is a deficient number, since it is larger than the sum of its proper divisors (3160223).

86188897 is a wasteful number, since it uses less digits than its factorization.

86188897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11903.

The product of its digits is 1548288, while the sum is 55.

The square root of 86188897 is about 9283.7975527259. The cubic root of 86188897 is about 441.7234352251.

The spelling of 86188897 in words is "eighty-six million, one hundred eighty-eight thousand, eight hundred ninety-seven".