3968725 has 6 divisors (see below), whose sum is σ = 4921250. Its totient is φ = 3174960.

The previous prime is 3968717. The next prime is 3968729. The reversal of 3968725 is 5278693.

It can be written as a sum of positive squares in 3 ways, for example, as 40401 + 3928324 = 201^2 + 1982^2 .

It is not a de Polignac number, because 3968725 - 2³ = 3968717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3968729) 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 5 ways as a sum of consecutive naturals, for example, 79350 + ... + 79399.

Almost surely, 2^3968725 is an apocalyptic number.

It is an amenable number.

3968725 is a deficient number, since it is larger than the sum of its proper divisors (952525).

3968725 is a wasteful number, since it uses less digits than its factorization.

3968725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158759 (or 158754 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 3968725 is about 1992.1659067457. The cubic root of 3968725 is about 158.3253058411.

The spelling of 3968725 in words is "three million, nine hundred sixty-eight thousand, seven hundred twenty-five".