3993525 has 18 divisors (see below), whose sum is σ = 7153250. Its totient is φ = 2129760.

The previous prime is 3993511. The next prime is 3993527. The reversal of 3993525 is 5253993.

It can be written as a sum of positive squares in 3 ways, for example, as 1521 + 3992004 = 39^2 + 1998^2 .

It is not a de Polignac number, because 3993525 - 2⁷ = 3993397 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3993525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3993527) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8650 + ... + 9099.

Almost surely, 2^3993525 is an apocalyptic number.

It is an amenable number.

3993525 is a deficient number, since it is larger than the sum of its proper divisors (3159725).

3993525 is a wasteful number, since it uses less digits than its factorization.

3993525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17765 (or 17757 counting only the distinct ones).

The product of its digits is 36450, while the sum is 36.

The square root of 3993525 is about 1998.3805943814. The cubic root of 3993525 is about 158.6544054229.

The spelling of 3993525 in words is "three million, nine hundred ninety-three thousand, five hundred twenty-five".