86555443 has 16 divisors (see below), whose sum is σ = 95146240. Its totient is φ = 78257664.

The previous prime is 86555407. The next prime is 86555477. The reversal of 86555443 is 34455568.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86555443 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 86555396 and 86555405.

It is not an unprimeable number, because it can be changed into a prime (86555243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211423 + ... + 211831.

It is an arithmetic number, because the mean of its divisors is an integer number (5946640).

Almost surely, 2^86555443 is an apocalyptic number.

86555443 is a deficient number, since it is larger than the sum of its proper divisors (8590797).

86555443 is a wasteful number, since it uses less digits than its factorization.

86555443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718.

The product of its digits is 288000, while the sum is 40.

The square root of 86555443 is about 9303.5177755514. The cubic root of 86555443 is about 442.3487399420.

The spelling of 86555443 in words is "eighty-six million, five hundred fifty-five thousand, four hundred forty-three".