3505081 has 4 divisors (see below), whose sum is σ = 3514852. Its totient is φ = 3495312.

The previous prime is 3505079. The next prime is 3505091. The reversal of 3505081 is 1805053.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 665856 + 2839225 = 816^2 + 1685^2 .

It is a cyclic number.

It is not a de Polignac number, because 3505081 - 2¹ = 3505079 is a prime.

It is a super-3 number, since 3×3505081³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3505031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4326 + ... + 5071.

It is an arithmetic number, because the mean of its divisors is an integer number (878713).

Almost surely, 2^3505081 is an apocalyptic number.

It is an amenable number.

3505081 is a deficient number, since it is larger than the sum of its proper divisors (9771).

3505081 is an equidigital number, since it uses as much as digits as its factorization.

3505081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9770.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 3505081 is about 1872.1861552741. The cubic root of 3505081 is about 151.9028840626.

The spelling of 3505081 in words is "three million, five hundred five thousand, eighty-one".