3000505 has 4 divisors (see below), whose sum is σ = 3600612. Its totient is φ = 2400400.

The previous prime is 3000479. The next prime is 3000523. The reversal of 3000505 is 5050003.

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 1721344 + 1279161 = 1312^2 + 1131^2 .

It is not a de Polignac number, because 3000505 - 2⁷ = 3000377 is a prime.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

3000505 is a modest number, since divided by 505 gives 300 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300046 + ... + 300055.

It is an arithmetic number, because the mean of its divisors is an integer number (900153).

Almost surely, 2^3000505 is an apocalyptic number.

It is an amenable number.

3000505 is a deficient number, since it is larger than the sum of its proper divisors (600107).

3000505 is an equidigital number, since it uses as much as digits as its factorization.

3000505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600106.

The product of its (nonzero) digits is 75, while the sum is 13.

The square root of 3000505 is about 1732.1965823774. The cubic root of 3000505 is about 144.2330491993.

Adding to 3000505 its reverse (5050003), we get a palindrome (8050508).

The spelling of 3000505 in words is "three million, five hundred five", and thus it is an aban number.