86211530 has 8 divisors (see below), whose sum is σ = 155180772. Its totient is φ = 34484608.

The previous prime is 86211529. The next prime is 86211533. The reversal of 86211530 is 3511268.

It can be written as a sum of positive squares in 2 ways, for example, as 81234169 + 4977361 = 9013^2 + 2231^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 86211530.

It is not an unprimeable number, because it can be changed into a prime (86211533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4310567 + ... + 4310586.

Almost surely, 2^86211530 is an apocalyptic number.

86211530 is a deficient number, since it is larger than the sum of its proper divisors (68969242).

86211530 is a wasteful number, since it uses less digits than its factorization.

86211530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8621160.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 86211530 is about 9285.0164243258. The cubic root of 86211530 is about 441.7620970168.

Adding to 86211530 its reverse (3511268), we get a palindrome (89722798).

The spelling of 86211530 in words is "eighty-six million, two hundred eleven thousand, five hundred thirty".