3471521 has 2 divisors, whose sum is σ = 3471522. Its totient is φ = 3471520.

The previous prime is 3471493. The next prime is 3471527. The reversal of 3471521 is 1251743.

3471521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2217121 + 1254400 = 1489^2 + 1120^2 .

It is an emirp because it is prime and its reverse (1251743) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3471521 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3471527) 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 as a sum of consecutive naturals, namely, 1735760 + 1735761.

It is an arithmetic number, because the mean of its divisors is an integer number (1735761).

Almost surely, 2^3471521 is an apocalyptic number.

It is an amenable number.

3471521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3471521 is an equidigital number, since it uses as much as digits as its factorization.

3471521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 23.

The square root of 3471521 is about 1863.2018140824. The cubic root of 3471521 is about 151.4165217403.

The spelling of 3471521 in words is "three million, four hundred seventy-one thousand, five hundred twenty-one".