86943744 has 144 divisors (see below), whose sum is σ = 258722100. Its totient is φ = 28114944.

The previous prime is 86943733. The next prime is 86943767. The reversal of 86943744 is 44734968.

It can be written as a sum of positive squares in 2 ways, for example, as 86713344 + 230400 = 9312^2 + 480^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 86943744.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 976852 + ... + 976940.

Almost surely, 2^86943744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86943744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129361050).

86943744 is an abundant number, since it is smaller than the sum of its proper divisors (171778356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86943744 is a wasteful number, since it uses less digits than its factorization.

86943744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 147 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 86943744 is about 9324.3629272996. The cubic root of 86943744 is about 443.0092346741.

The spelling of 86943744 in words is "eighty-six million, nine hundred forty-three thousand, seven hundred forty-four".