3475521 has 48 divisors (see below), whose sum is σ = 6238080. Its totient is φ = 1905120.

The previous prime is 3475489. The next prime is 3475543. The reversal of 3475521 is 1255743.

It is a happy number.

It is not a de Polignac number, because 3475521 - 2⁵ = 3475489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3475421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48916 + ... + 48986.

It is an arithmetic number, because the mean of its divisors is an integer number (129960).

Almost surely, 2^3475521 is an apocalyptic number.

It is an amenable number.

3475521 is a deficient number, since it is larger than the sum of its proper divisors (2762559).

3475521 is a wasteful number, since it uses less digits than its factorization.

3475521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 118 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 3475521 is about 1864.2749260772. The cubic root of 3475521 is about 151.4746551073.

The spelling of 3475521 in words is "three million, four hundred seventy-five thousand, five hundred twenty-one".