86128450 has 24 divisors (see below), whose sum is σ = 160908228. Its totient is φ = 34298880.

The previous prime is 86128429. The next prime is 86128459. The reversal of 86128450 is 5482168.

It can be written as a sum of positive squares in 6 ways, for example, as 7469289 + 78659161 = 2733^2 + 8869^2 .

It is not an unprimeable number, because it can be changed into a prime (86128459) 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 11 ways as a sum of consecutive naturals, for example, 7954 + ... + 15346.

Almost surely, 2^86128450 is an apocalyptic number.

86128450 is a deficient number, since it is larger than the sum of its proper divisors (74779778).

86128450 is a wasteful number, since it uses less digits than its factorization.

86128450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7638 (or 7633 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 86128450 is about 9280.5414712720. The cubic root of 86128450 is about 441.6201462018.

The spelling of 86128450 in words is "eighty-six million, one hundred twenty-eight thousand, four hundred fifty".