3984725 has 6 divisors (see below), whose sum is σ = 4941090. Its totient is φ = 3187760.

The previous prime is 3984679. The next prime is 3984731. The reversal of 3984725 is 5274893.

It can be written as a sum of positive squares in 3 ways, for example, as 908209 + 3076516 = 953^2 + 1754^2 .

It is not a de Polignac number, because 3984725 - 2¹² = 3980629 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 79670 + ... + 79719.

It is an arithmetic number, because the mean of its divisors is an integer number (823515).

Almost surely, 2^3984725 is an apocalyptic number.

It is an amenable number.

3984725 is a deficient number, since it is larger than the sum of its proper divisors (956365).

3984725 is a wasteful number, since it uses less digits than its factorization.

3984725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159399 (or 159394 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 3984725 is about 1996.1775973094. The cubic root of 3984725 is about 158.5377845149.

The spelling of 3984725 in words is "three million, nine hundred eighty-four thousand, seven hundred twenty-five".