39785125 has 8 divisors (see below), whose sum is σ = 49651992. Its totient is φ = 31828000.

The previous prime is 39785029. The next prime is 39785149. The reversal of 39785125 is 52158793.

39785125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 459684 + 39325441 = 678^2 + 6271^2 .

It is a de Polignac number, because none of the positive numbers 2^k-39785125 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 159016 + ... + 159265.

It is an arithmetic number, because the mean of its divisors is an integer number (6206499).

Almost surely, 2^39785125 is an apocalyptic number.

It is an amenable number.

39785125 is a deficient number, since it is larger than the sum of its proper divisors (9866867).

39785125 is an equidigital number, since it uses as much as digits as its factorization.

39785125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318296 (or 318286 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The square root of 39785125 is about 6307.5450850549. The cubic root of 39785125 is about 341.3817043630.

The spelling of 39785125 in words is "thirty-nine million, seven hundred eighty-five thousand, one hundred twenty-five".