3504005 has 4 divisors (see below), whose sum is σ = 4204812. Its totient is φ = 2803200.

The previous prime is 3504001. The next prime is 3504013. The reversal of 3504005 is 5004053.

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 1366561 + 2137444 = 1169^2 + 1462^2 .

It is not a de Polignac number, because 3504005 - 2² = 3504001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3504001) 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, 350396 + ... + 350405.

It is an arithmetic number, because the mean of its divisors is an integer number (1051203).

Almost surely, 2^3504005 is an apocalyptic number.

It is an amenable number.

3504005 is a deficient number, since it is larger than the sum of its proper divisors (700807).

3504005 is an equidigital number, since it uses as much as digits as its factorization.

3504005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700806.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 3504005 is about 1871.8987686304. The cubic root of 3504005 is about 151.8873386082.

Adding to 3504005 its reverse (5004053), we get a palindrome (8508058).

The spelling of 3504005 in words is "three million, five hundred four thousand, five".