86198321 has 16 divisors (see below), whose sum is σ = 97970688. Its totient is φ = 75129600.

The previous prime is 86198317. The next prime is 86198341. The reversal of 86198321 is 12389168.

It is a cyclic number.

It is not a de Polignac number, because 86198321 - 2² = 86198317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86198311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37415 + ... + 39651.

It is an arithmetic number, because the mean of its divisors is an integer number (6123168).

Almost surely, 2^86198321 is an apocalyptic number.

It is an amenable number.

86198321 is a deficient number, since it is larger than the sum of its proper divisors (11772367).

86198321 is a wasteful number, since it uses less digits than its factorization.

86198321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392.

The product of its digits is 20736, while the sum is 38.

The square root of 86198321 is about 9284.3050897738. The cubic root of 86198321 is about 441.7395341663.

The spelling of 86198321 in words is "eighty-six million, one hundred ninety-eight thousand, three hundred twenty-one".