86824285 has 4 divisors (see below), whose sum is σ = 104189148. Its totient is φ = 69459424.

The previous prime is 86824271. The next prime is 86824291. The reversal of 86824285 is 58242868.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14182756 + 72641529 = 3766^2 + 8523^2 .

It is a cyclic number.

It is not a de Polignac number, because 86824285 - 2²³ = 78435677 is a prime.

It is a super-2 number, since 2×86824285² = 15076912931522450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8682424 + ... + 8682433.

It is an arithmetic number, because the mean of its divisors is an integer number (26047287).

Almost surely, 2^86824285 is an apocalyptic number.

It is an amenable number.

86824285 is a deficient number, since it is larger than the sum of its proper divisors (17364863).

86824285 is a wasteful number, since it uses less digits than its factorization.

86824285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17364862.

The product of its digits is 245760, while the sum is 43.

The square root of 86824285 is about 9317.9549795006. The cubic root of 86824285 is about 442.8062463435.

The spelling of 86824285 in words is "eighty-six million, eight hundred twenty-four thousand, two hundred eighty-five".