3504781 has 8 divisors (see below), whose sum is σ = 4045184. Its totient is φ = 2974320.

The previous prime is 3504779. The next prime is 3504793. The reversal of 3504781 is 1874053.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3504781 - 2¹ = 3504779 is a prime.

It is a super-2 number, since 2×3504781² = 24566979715922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3504701) 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 in 7 ways as a sum of consecutive naturals, for example, 1710 + ... + 3151.

It is an arithmetic number, because the mean of its divisors is an integer number (505648).

Almost surely, 2^3504781 is an apocalyptic number.

It is an amenable number.

3504781 is a deficient number, since it is larger than the sum of its proper divisors (540403).

3504781 is a wasteful number, since it uses less digits than its factorization.

3504781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4971.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 3504781 is about 1872.1060333218. The cubic root of 3504781 is about 151.8985501480.

The spelling of 3504781 in words is "three million, five hundred four thousand, seven hundred eighty-one".