3521291 has 2 divisors, whose sum is σ = 3521292. Its totient is φ = 3521290.

The previous prime is 3521281. The next prime is 3521293. The reversal of 3521291 is 1921253.

It is a strong prime.

It is an emirp because it is prime and its reverse (1921253) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3521291 is a prime.

Together with 3521293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3521293) by changing a digit.

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 as a sum of consecutive naturals, namely, 1760645 + 1760646.

It is an arithmetic number, because the mean of its divisors is an integer number (1760646).

Almost surely, 2^3521291 is an apocalyptic number.

3521291 is a deficient number, since it is larger than the sum of its proper divisors (1).

3521291 is an equidigital number, since it uses as much as digits as its factorization.

3521291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 23.

The square root of 3521291 is about 1876.5103250449. The cubic root of 3521291 is about 152.1366931711.

The spelling of 3521291 in words is "three million, five hundred twenty-one thousand, two hundred ninety-one".