3504685 has 4 divisors (see below), whose sum is σ = 4205628. Its totient is φ = 2803744.

The previous prime is 3504673. The next prime is 3504689. The reversal of 3504685 is 5864053.

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 2184484 + 1320201 = 1478^2 + 1149^2 .

It is a cyclic number.

It is not a de Polignac number, because 3504685 - 2⁹ = 3504173 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3504689) 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 3 ways as a sum of consecutive naturals, for example, 350464 + ... + 350473.

It is an arithmetic number, because the mean of its divisors is an integer number (1051407).

Almost surely, 2^3504685 is an apocalyptic number.

It is an amenable number.

3504685 is a deficient number, since it is larger than the sum of its proper divisors (700943).

3504685 is an equidigital number, since it uses as much as digits as its factorization.

3504685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700942.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 3504685 is about 1872.0803935729. The cubic root of 3504685 is about 151.8971632431.

The spelling of 3504685 in words is "three million, five hundred four thousand, six hundred eighty-five".