86867321 has 4 divisors (see below), whose sum is σ = 86889600. Its totient is φ = 86845044.

The previous prime is 86867317. The next prime is 86867329. The reversal of 86867321 is 12376868.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86867321 - 2² = 86867317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86867329) 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 3 ways as a sum of consecutive naturals, for example, 3581 + ... + 13658.

It is an arithmetic number, because the mean of its divisors is an integer number (21722400).

Almost surely, 2^86867321 is an apocalyptic number.

It is an amenable number.

86867321 is a deficient number, since it is larger than the sum of its proper divisors (22279).

86867321 is a wasteful number, since it uses less digits than its factorization.

86867321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22278.

The product of its digits is 96768, while the sum is 41.

The square root of 86867321 is about 9320.2639984069. The cubic root of 86867321 is about 442.8793958542.

The spelling of 86867321 in words is "eighty-six million, eight hundred sixty-seven thousand, three hundred twenty-one".