86705641 has 8 divisors (see below), whose sum is σ = 94927968. Its totient is φ = 78540000.

The previous prime is 86705639. The next prime is 86705651. The reversal of 86705641 is 14650768.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86705641 - 2¹ = 86705639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86705641.

It is not an unprimeable number, because it can be changed into a prime (86705651) 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 7 ways as a sum of consecutive naturals, for example, 10935 + ... + 17116.

It is an arithmetic number, because the mean of its divisors is an integer number (11865996).

Almost surely, 2^86705641 is an apocalyptic number.

It is an amenable number.

86705641 is a deficient number, since it is larger than the sum of its proper divisors (8222327).

86705641 is a wasteful number, since it uses less digits than its factorization.

86705641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28343.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 86705641 is about 9311.5863847145. The cubic root of 86705641 is about 442.6044585123.

The spelling of 86705641 in words is "eighty-six million, seven hundred five thousand, six hundred forty-one".