86312211 has 4 divisors (see below), whose sum is σ = 115082952. Its totient is φ = 57541472.

The previous prime is 86312197. The next prime is 86312251. The reversal of 86312211 is 11221368.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86312211 - 2¹⁰ = 86311187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86312251) 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, 14385366 + ... + 14385371.

It is an arithmetic number, because the mean of its divisors is an integer number (28770738).

Almost surely, 2^86312211 is an apocalyptic number.

86312211 is a deficient number, since it is larger than the sum of its proper divisors (28770741).

86312211 is a wasteful number, since it uses less digits than its factorization.

86312211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28770740.

The product of its digits is 576, while the sum is 24.

The square root of 86312211 is about 9290.4365344154. The cubic root of 86312211 is about 441.9339987989.

Adding to 86312211 its reverse (11221368), we get a palindrome (97533579).

The spelling of 86312211 in words is "eighty-six million, three hundred twelve thousand, two hundred eleven".