85996729 has 16 divisors (see below), whose sum is σ = 106791552. Its totient is φ = 67431168.

The previous prime is 85996709. The next prime is 85996733. The reversal of 85996729 is 92769958.

It is not a de Polignac number, because 85996729 - 2¹¹ = 85994681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85996729.

It is not an unprimeable number, because it can be changed into a prime (85996709) 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 15 ways as a sum of consecutive naturals, for example, 6102 + ... + 14464.

It is an arithmetic number, because the mean of its divisors is an integer number (6674472).

Almost surely, 2^85996729 is an apocalyptic number.

It is an amenable number.

85996729 is a deficient number, since it is larger than the sum of its proper divisors (20794823).

85996729 is a wasteful number, since it uses less digits than its factorization.

85996729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8496.

The product of its digits is 2449440, while the sum is 55.

The square root of 85996729 is about 9273.4421333181. The cubic root of 85996729 is about 441.3948999677.

The spelling of 85996729 in words is "eighty-five million, nine hundred ninety-six thousand, seven hundred twenty-nine".