86321143 has 4 divisors (see below), whose sum is σ = 89105728. Its totient is φ = 83536560.

The previous prime is 86321129. The next prime is 86321149. The reversal of 86321143 is 34112368.

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

It is a cyclic number.

It is not a de Polignac number, because 86321143 - 2²¹ = 84223991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86321149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392246 + ... + 1392307.

It is an arithmetic number, because the mean of its divisors is an integer number (22276432).

Almost surely, 2^86321143 is an apocalyptic number.

86321143 is a deficient number, since it is larger than the sum of its proper divisors (2784585).

86321143 is a wasteful number, since it uses less digits than its factorization.

86321143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784584.

The product of its digits is 3456, while the sum is 28.

The square root of 86321143 is about 9290.9172313610. The cubic root of 86321143 is about 441.9492427536.

The spelling of 86321143 in words is "eighty-six million, three hundred twenty-one thousand, one hundred forty-three".