86142736 has 20 divisors (see below), whose sum is σ = 169639564. Its totient is φ = 42364800.

The previous prime is 86142733. The next prime is 86142743. The reversal of 86142736 is 63724168.

It can be written as a sum of positive squares in 2 ways, for example, as 2310400 + 83832336 = 1520^2 + 9156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86142695 and 86142704.

It is not an unprimeable number, because it can be changed into a prime (86142733) 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 3 ways as a sum of consecutive naturals, for example, 43155 + ... + 45106.

Almost surely, 2^86142736 is an apocalyptic number.

It is an amenable number.

86142736 is a deficient number, since it is larger than the sum of its proper divisors (83496828).

86142736 is a wasteful number, since it uses less digits than its factorization.

86142736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88330 (or 88324 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 86142736 is about 9281.3111142769. The cubic root of 86142736 is about 441.6445618145.

The spelling of 86142736 in words is "eighty-six million, one hundred forty-two thousand, seven hundred thirty-six".