3960625 has 10 divisors (see below), whose sum is σ = 4949978. Its totient is φ = 3168000.

The previous prime is 3960613. The next prime is 3960631. The reversal of 3960625 is 5260693.

It can be written as a sum of positive squares in 5 ways, for example, as 1852321 + 2108304 = 1361^2 + 1452^2 .

It is not a de Polignac number, because 3960625 - 2⁷ = 3960497 is a prime.

It is a d-powerful number, because it can be written as 3³ + 9⁵ + 6⁶ + 0 + 6⁸ + 2²¹ + 5⁷ .

It is a Duffinian 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 9 ways as a sum of consecutive naturals, for example, 2544 + ... + 3793.

Almost surely, 2^3960625 is an apocalyptic number.

It is an amenable number.

3960625 is a deficient number, since it is larger than the sum of its proper divisors (989353).

3960625 is an frugal number, since it uses more digits than its factorization.

3960625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6357 (or 6342 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 3960625 is about 1990.1319051761. The cubic root of 3960625 is about 158.2175207268.

The spelling of 3960625 in words is "three million, nine hundred sixty thousand, six hundred twenty-five".