86044191 has 16 divisors (see below), whose sum is σ = 122943744. Its totient is φ = 53335424.

The previous prime is 86044187. The next prime is 86044201. The reversal of 86044191 is 19144068.

It is a cyclic number.

It is not a de Polignac number, because 86044191 - 2² = 86044187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86044121) 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, 5931 + ... + 14396.

It is an arithmetic number, because the mean of its divisors is an integer number (7683984).

Almost surely, 2^86044191 is an apocalyptic number.

86044191 is a deficient number, since it is larger than the sum of its proper divisors (36899553).

86044191 is a wasteful number, since it uses less digits than its factorization.

86044191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20430.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 86044191 is about 9276.0008085381. Note that the first 3 decimals coincide. The cubic root of 86044191 is about 441.4760876754.

The spelling of 86044191 in words is "eighty-six million, forty-four thousand, one hundred ninety-one".