3525921 has 12 divisors (see below), whose sum is σ = 5820672. Its totient is φ = 2014776.

The previous prime is 3525911. The next prime is 3525937. The reversal of 3525921 is 1295253.

3525921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3525921 - 2⁵ = 3525889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3525911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27921 + ... + 28046.

It is an arithmetic number, because the mean of its divisors is an integer number (485056).

Almost surely, 2^3525921 is an apocalyptic number.

It is an amenable number.

3525921 is a deficient number, since it is larger than the sum of its proper divisors (2294751).

3525921 is a wasteful number, since it uses less digits than its factorization.

3525921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55980 (or 55977 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 3525921 is about 1877.7435927197. The cubic root of 3525921 is about 152.2033433844.

The spelling of 3525921 in words is "three million, five hundred twenty-five thousand, nine hundred twenty-one".