3006749 has 4 divisors (see below), whose sum is σ = 3110460. Its totient is φ = 2903040.

The previous prime is 3006737. The next prime is 3006761. The reversal of 3006749 is 9476003.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3006737) and next prime (3006761).

It can be written as a sum of positive squares in 2 ways, for example, as 1170724 + 1836025 = 1082^2 + 1355^2 .

It is a cyclic number.

It is not a de Polignac number, because 3006749 - 2⁴ = 3006733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 103681 = 3006749 / (3 + 0 + 0 + 6 + 7 + 4 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3006719) 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, 51812 + ... + 51869.

It is an arithmetic number, because the mean of its divisors is an integer number (777615).

Almost surely, 2^3006749 is an apocalyptic number.

It is an amenable number.

3006749 is a deficient number, since it is larger than the sum of its proper divisors (103711).

3006749 is a wasteful number, since it uses less digits than its factorization.

3006749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103710.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 3006749 is about 1733.9979815444. The cubic root of 3006749 is about 144.3330287222. Note that the first 3 decimals are identical.

The spelling of 3006749 in words is "three million, six thousand, seven hundred forty-nine".