86820243 has 8 divisors (see below), whose sum is σ = 119494656. Its totient is φ = 56013000.

The previous prime is 86820203. The next prime is 86820259. The reversal of 86820243 is 34202868.

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

It is not a de Polignac number, because 86820243 - 2¹⁰ = 86819219 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (86820203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466683 + ... + 466868.

It is an arithmetic number, because the mean of its divisors is an integer number (14936832).

Almost surely, 2^86820243 is an apocalyptic number.

86820243 is a deficient number, since it is larger than the sum of its proper divisors (32674413).

86820243 is a wasteful number, since it uses less digits than its factorization.

86820243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933585.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 86820243 is about 9317.7380838914. The cubic root of 86820243 is about 442.7993747997.

The spelling of 86820243 in words is "eighty-six million, eight hundred twenty thousand, two hundred forty-three".