3005749 has 2 divisors, whose sum is σ = 3005750. Its totient is φ = 3005748.

The previous prime is 3005747. The next prime is 3005771. The reversal of 3005749 is 9475003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2745649 + 260100 = 1657^2 + 510^2 .

It is an emirp because it is prime and its reverse (9475003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3005749 - 2¹ = 3005747 is a prime.

Together with 3005747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3005747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1502874 + 1502875.

It is an arithmetic number, because the mean of its divisors is an integer number (1502875).

Almost surely, 2^3005749 is an apocalyptic number.

It is an amenable number.

3005749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3005749 is an equidigital number, since it uses as much as digits as its factorization.

3005749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 3005749 is about 1733.7096065951. The cubic root of 3005749 is about 144.3170259417.

The spelling of 3005749 in words is "three million, five thousand, seven hundred forty-nine".