86705541 has 24 divisors (see below), whose sum is σ = 138527480. Its totient is φ = 51912576.

The previous prime is 86705539. The next prime is 86705551. The reversal of 86705541 is 14550768.

It can be written as a sum of positive squares in 4 ways, for example, as 7584516 + 79121025 = 2754^2 + 8895^2 .

It is not a de Polignac number, because 86705541 - 2¹ = 86705539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86705496 and 86705505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86705551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5686 + ... + 14343.

Almost surely, 2^86705541 is an apocalyptic number.

It is an amenable number.

86705541 is a deficient number, since it is larger than the sum of its proper divisors (51821939).

86705541 is a wasteful number, since it uses less digits than its factorization.

86705541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20085 (or 20082 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 86705541 is about 9311.5810150586. The cubic root of 86705541 is about 442.6042883563.

The spelling of 86705541 in words is "eighty-six million, seven hundred five thousand, five hundred forty-one".