86018491 has 8 divisors (see below), whose sum is σ = 97511120. Its totient is φ = 75222432.

The previous prime is 86018483. The next prime is 86018501. The reversal of 86018491 is 19481068.

It is a happy number.

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 86018491 - 2³ = 86018483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86018491.

It is not an unprimeable number, because it can be changed into a prime (86018441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173880 + ... + 174373.

It is an arithmetic number, because the mean of its divisors is an integer number (12188890).

Almost surely, 2^86018491 is an apocalyptic number.

86018491 is a deficient number, since it is larger than the sum of its proper divisors (11492629).

86018491 is a wasteful number, since it uses less digits than its factorization.

86018491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348285.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 86018491 is about 9274.6154098162. The cubic root of 86018491 is about 441.4321293902.

The spelling of 86018491 in words is "eighty-six million, eighteen thousand, four hundred ninety-one".