3520481 has 2 divisors, whose sum is σ = 3520482. Its totient is φ = 3520480.

The previous prime is 3520457. The next prime is 3520483. The reversal of 3520481 is 1840253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2739025 + 781456 = 1655^2 + 884^2 .

It is a cyclic number.

It is not a de Polignac number, because 3520481 - 2¹⁰ = 3519457 is a prime.

It is a super-3 number, since 3×3520481³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 3520483, 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 (3520483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760240 + 1760241.

It is an arithmetic number, because the mean of its divisors is an integer number (1760241).

Almost surely, 2^3520481 is an apocalyptic number.

It is an amenable number.

3520481 is a deficient number, since it is larger than the sum of its proper divisors (1).

3520481 is an equidigital number, since it uses as much as digits as its factorization.

3520481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 3520481 is about 1876.2944864813. The cubic root of 3520481 is about 152.1250269790.

The spelling of 3520481 in words is "three million, five hundred twenty thousand, four hundred eighty-one".