3009947 has 4 divisors (see below), whose sum is σ = 3014760. Its totient is φ = 3005136.

The previous prime is 3009931. The next prime is 3009953. The reversal of 3009947 is 7499003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7499003 = 257 ⋅29179.

It is a cyclic number.

It is not a de Polignac number, because 3009947 - 2⁴ = 3009931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3009907) 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, 1298 + ... + 2775.

It is an arithmetic number, because the mean of its divisors is an integer number (753690).

Almost surely, 2^3009947 is an apocalyptic number.

3009947 is a deficient number, since it is larger than the sum of its proper divisors (4813).

3009947 is an equidigital number, since it uses as much as digits as its factorization.

3009947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 3009947 is about 1734.9198828764. The cubic root of 3009947 is about 144.3841818089.

The spelling of 3009947 in words is "three million, nine thousand, nine hundred forty-seven".