86211959 has 8 divisors (see below), whose sum is σ = 88275648. Its totient is φ = 84157920.

The previous prime is 86211953. The next prime is 86211967. The reversal of 86211959 is 95911268.

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 86211959 - 2⁴ = 86211943 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 (86211953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17609 + ... + 21965.

It is an arithmetic number, because the mean of its divisors is an integer number (11034456).

Almost surely, 2^86211959 is an apocalyptic number.

86211959 is a deficient number, since it is larger than the sum of its proper divisors (2063689).

86211959 is a wasteful number, since it uses less digits than its factorization.

86211959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4825.

The product of its digits is 38880, while the sum is 41.

The square root of 86211959 is about 9285.0395260333. The cubic root of 86211959 is about 441.7628297711.

It can be divided in two parts, 862 and 11959, that added together give a palindrome (12821).

The spelling of 86211959 in words is "eighty-six million, two hundred eleven thousand, nine hundred fifty-nine".