85907529 has 12 divisors (see below), whose sum is σ = 124170436. Its totient is φ = 57233952.

The previous prime is 85907527. The next prime is 85907533. The reversal of 85907529 is 92570958.

It is a happy number.

85907529 is a `hidden beast` number, since 8 + 590 + 7 + 52 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41990400 + 43917129 = 6480^2 + 6627^2 .

It is not a de Polignac number, because 85907529 - 2¹ = 85907527 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85907527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21147 + ... + 24879.

Almost surely, 2^85907529 is an apocalyptic number.

It is an amenable number.

85907529 is a deficient number, since it is larger than the sum of its proper divisors (38262907).

85907529 is a wasteful number, since it uses less digits than its factorization.

85907529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6296 (or 6293 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 85907529 is about 9268.6314523774. The cubic root of 85907529 is about 441.2422350684.

It can be divided in two parts, 8590752 and 9, that added together give a square (8590761 = 2931²).

The spelling of 85907529 in words is "eighty-five million, nine hundred seven thousand, five hundred twenty-nine".