86645448 has 36 divisors (see below), whose sum is σ = 234878865. Its totient is φ = 28855488.

The previous prime is 86645441. The next prime is 86645459. The reversal of 86645448 is 84454668.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 82410084 + 4235364 = 9078^2 + 2058^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6582.

It is not an unprimeable number, because it can be changed into a prime (86645441) 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 8 ways as a sum of consecutive naturals, for example, 78436 + ... + 79532.

Almost surely, 2^86645448 is an apocalyptic number.

It is an amenable number.

86645448 is an abundant number, since it is smaller than the sum of its proper divisors (148233417).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86645448 is a wasteful number, since it uses less digits than its factorization.

86645448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206 (or 1102 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 86645448 is about 9308.3536675397. The cubic root of 86645448 is about 442.5020128224.

The spelling of 86645448 in words is "eighty-six million, six hundred forty-five thousand, four hundred forty-eight".