86947321 has 8 divisors (see below), whose sum is σ = 89925120. Its totient is φ = 84016608.

The previous prime is 86947319. The next prime is 86947327. The reversal of 86947321 is 12374968.

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 86947321 - 2¹ = 86947319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86947327) 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, 7996 + ... + 15421.

It is an arithmetic number, because the mean of its divisors is an integer number (11240640).

Almost surely, 2^86947321 is an apocalyptic number.

It is an amenable number.

86947321 is a deficient number, since it is larger than the sum of its proper divisors (2977799).

86947321 is a wasteful number, since it uses less digits than its factorization.

86947321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23543.

The product of its digits is 72576, while the sum is 40.

The square root of 86947321 is about 9324.5547346777. The cubic root of 86947321 is about 443.0153099523.

The spelling of 86947321 in words is "eighty-six million, nine hundred forty-seven thousand, three hundred twenty-one".