3005669 has 4 divisors (see below), whose sum is σ = 3079020. Its totient is φ = 2932320.

The previous prime is 3005633. The next prime is 3005671. The reversal of 3005669 is 9665003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9665003 = 113 ⋅85531.

It can be written as a sum of positive squares in 2 ways, for example, as 240100 + 2765569 = 490^2 + 1663^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3005669 is a prime.

It is a super-2 number, since 2×3005669² = 18068092275122, 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 (3005609) 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, 36614 + ... + 36695.

It is an arithmetic number, because the mean of its divisors is an integer number (769755).

Almost surely, 2^3005669 is an apocalyptic number.

It is an amenable number.

3005669 is a deficient number, since it is larger than the sum of its proper divisors (73351).

3005669 is an equidigital number, since it uses as much as digits as its factorization.

3005669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73350.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 3005669 is about 1733.6865345269. The cubic root of 3005669 is about 144.3157455660.

The spelling of 3005669 in words is "three million, five thousand, six hundred sixty-nine".