3503261 has 2 divisors, whose sum is σ = 3503262. Its totient is φ = 3503260.

The previous prime is 3503249. The next prime is 3503263. The reversal of 3503261 is 1623053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2464900 + 1038361 = 1570^2 + 1019^2 .

It is an emirp because it is prime and its reverse (1623053) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3503261 - 2¹⁰ = 3502237 is a prime.

Together with 3503263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3503263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1751630 + 1751631.

It is an arithmetic number, because the mean of its divisors is an integer number (1751631).

Almost surely, 2^3503261 is an apocalyptic number.

It is an amenable number.

3503261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3503261 is an equidigital number, since it uses as much as digits as its factorization.

3503261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 3503261 is about 1871.7000293851. The cubic root of 3503261 is about 151.8765878455.

The spelling of 3503261 in words is "three million, five hundred three thousand, two hundred sixty-one".