86544243 has 24 divisors (see below), whose sum is σ = 127685376. Its totient is φ = 56473200.

The previous prime is 86544217. The next prime is 86544329. The reversal of 86544243 is 34244568.

It is not a de Polignac number, because 86544243 - 2⁸ = 86543987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86544198 and 86544207.

It is not an unprimeable number, because it can be changed into a prime (86544643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106308 + ... + 107118.

It is an arithmetic number, because the mean of its divisors is an integer number (5320224).

Almost surely, 2^86544243 is an apocalyptic number.

86544243 is a deficient number, since it is larger than the sum of its proper divisors (41141133).

86544243 is a wasteful number, since it uses less digits than its factorization.

86544243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1052 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 86544243 is about 9302.9158332213. The cubic root of 86544243 is about 442.3296596106.

The spelling of 86544243 in words is "eighty-six million, five hundred forty-four thousand, two hundred forty-three".