86385641 has 4 divisors (see below), whose sum is σ = 86419284. Its totient is φ = 86352000.

The previous prime is 86385589. The next prime is 86385659. The reversal of 86385641 is 14658368.

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

It can be written as a sum of positive squares in 2 ways, for example, as 57441241 + 28944400 = 7579^2 + 5380^2 .

It is a cyclic number.

It is not a de Polignac number, because 86385641 - 2²² = 82191337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86387641) 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 3 ways as a sum of consecutive naturals, for example, 12620 + ... + 18221.

It is an arithmetic number, because the mean of its divisors is an integer number (21604821).

Almost surely, 2^86385641 is an apocalyptic number.

It is an amenable number.

86385641 is a deficient number, since it is larger than the sum of its proper divisors (33643).

86385641 is a wasteful number, since it uses less digits than its factorization.

86385641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33642.

The product of its digits is 138240, while the sum is 41.

The square root of 86385641 is about 9294.3876075834. The cubic root of 86385641 is about 442.0592881984.

The spelling of 86385641 in words is "eighty-six million, three hundred eighty-five thousand, six hundred forty-one".