3056749 has 4 divisors (see below), whose sum is σ = 3078880. Its totient is φ = 3034620.

The previous prime is 3056717. The next prime is 3056759. The reversal of 3056749 is 9476503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9476503 = 617 ⋅15359.

It is a cyclic number.

It is not a de Polignac number, because 3056749 - 2⁵ = 3056717 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3056759) 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, 10857 + ... + 11134.

It is an arithmetic number, because the mean of its divisors is an integer number (769720).

Almost surely, 2^3056749 is an apocalyptic number.

It is an amenable number.

3056749 is a deficient number, since it is larger than the sum of its proper divisors (22131).

3056749 is a wasteful number, since it uses less digits than its factorization.

3056749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22130.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 3056749 is about 1748.3560850124. The cubic root of 3056749 is about 145.1286848096.

The spelling of 3056749 in words is "three million, fifty-six thousand, seven hundred forty-nine".