86443693 has 24 divisors (see below), whose sum is σ = 105062400. Its totient is φ = 70828128.

The previous prime is 86443663. The next prime is 86443723. The reversal of 86443693 is 39634468.

It is an interprime number because it is at equal distance from previous prime (86443663) and next prime (86443723).

It is not a de Polignac number, because 86443693 - 2⁵ = 86443661 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 (86443603) 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 23 ways as a sum of consecutive naturals, for example, 180228 + ... + 180706.

It is an arithmetic number, because the mean of its divisors is an integer number (4377600).

Almost surely, 2^86443693 is an apocalyptic number.

It is an amenable number.

86443693 is a deficient number, since it is larger than the sum of its proper divisors (18618707).

86443693 is a wasteful number, since it uses less digits than its factorization.

86443693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 642 counting only the distinct ones).

The product of its digits is 373248, while the sum is 43.

The square root of 86443693 is about 9297.5100430169. The cubic root of 86443693 is about 442.1582887544.

The spelling of 86443693 in words is "eighty-six million, four hundred forty-three thousand, six hundred ninety-three".