85704125 has 24 divisors (see below), whose sum is σ = 115847784. Its totient is φ = 63273600.

The previous prime is 85704121. The next prime is 85704149. The reversal of 85704125 is 52140758.

It can be written as a sum of positive squares in 12 ways, for example, as 82700836 + 3003289 = 9094^2 + 1733^2 .

It is not a de Polignac number, because 85704125 - 2² = 85704121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85704091 and 85704100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85704121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19097 + ... + 23153.

It is an arithmetic number, because the mean of its divisors is an integer number (4826991).

Almost surely, 2^85704125 is an apocalyptic number.

It is an amenable number.

85704125 is a deficient number, since it is larger than the sum of its proper divisors (30143659).

85704125 is a wasteful number, since it uses less digits than its factorization.

85704125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098 (or 4075 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 85704125 is about 9257.6522401741. The cubic root of 85704125 is about 440.8937155062.

The spelling of 85704125 in words is "eighty-five million, seven hundred four thousand, one hundred twenty-five".