86889111 has 16 divisors (see below), whose sum is σ = 118842240. Its totient is φ = 56437920.

The previous prime is 86889107. The next prime is 86889137. The reversal of 86889111 is 11198868.

It is not a de Polignac number, because 86889111 - 2² = 86889107 is a prime.

It is a super-2 number, since 2×86889111² = 15099435220740642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86889181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84760 + ... + 85778.

It is an arithmetic number, because the mean of its divisors is an integer number (7427640).

Almost surely, 2^86889111 is an apocalyptic number.

86889111 is a deficient number, since it is larger than the sum of its proper divisors (31953129).

86889111 is a wasteful number, since it uses less digits than its factorization.

86889111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726.

The product of its digits is 27648, while the sum is 42.

The square root of 86889111 is about 9321.4328834144. The cubic root of 86889111 is about 442.9164237228.

Adding to 86889111 its sum of digits (42), we get a triangular number (86889153 = T₁₃₁₈₂).

The spelling of 86889111 in words is "eighty-six million, eight hundred eighty-nine thousand, one hundred eleven".