3986525 has 12 divisors (see below), whose sum is σ = 4976244. Its totient is φ = 3168000.

The previous prime is 3986519. The next prime is 3986531. The reversal of 3986525 is 5256893.

It is an interprime number because it is at equal distance from previous prime (3986519) and next prime (3986531).

It can be written as a sum of positive squares in 6 ways, for example, as 1493284 + 2493241 = 1222^2 + 1579^2 .

It is not a de Polignac number, because 3986525 - 2¹⁶ = 3920989 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 11 ways as a sum of consecutive naturals, for example, 4085 + ... + 4965.

It is an arithmetic number, because the mean of its divisors is an integer number (414687).

Almost surely, 2^3986525 is an apocalyptic number.

It is an amenable number.

3986525 is a deficient number, since it is larger than the sum of its proper divisors (989719).

3986525 is a wasteful number, since it uses less digits than its factorization.

3986525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1067 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 3986525 is about 1996.6284080920. The cubic root of 3986525 is about 158.5616527495.

The spelling of 3986525 in words is "three million, nine hundred eighty-six thousand, five hundred twenty-five".