3906125 has 8 divisors (see below), whose sum is σ = 4875000. Its totient is φ = 3124800.

The previous prime is 3906109. The next prime is 3906137. The reversal of 3906125 is 5216093.

It can be written as a sum of positive squares in 4 ways, for example, as 72361 + 3833764 = 269^2 + 1958^2 .

It is not a de Polignac number, because 3906125 - 2⁴ = 3906109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3906094 and 3906103.

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, 15500 + ... + 15749.

It is an arithmetic number, because the mean of its divisors is an integer number (609375).

Almost surely, 2^3906125 is an apocalyptic number.

It is an amenable number.

3906125 is a deficient number, since it is larger than the sum of its proper divisors (968875).

3906125 is an equidigital number, since it uses as much as digits as its factorization.

3906125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31264 (or 31254 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 3906125 is about 1976.3919145756. The cubic root of 3906125 is about 157.4884513242.

The spelling of 3906125 in words is "three million, nine hundred six thousand, one hundred twenty-five".