3047945 has 4 divisors (see below), whose sum is σ = 3657540. Its totient is φ = 2438352.

The previous prime is 3047921. The next prime is 3047953. The reversal of 3047945 is 5497403.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1646089 + 1401856 = 1283^2 + 1184^2 .

It is a cyclic number.

It is not a de Polignac number, because 3047945 - 2⁸ = 3047689 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304790 + ... + 304799.

It is an arithmetic number, because the mean of its divisors is an integer number (914385).

Almost surely, 2^3047945 is an apocalyptic number.

It is an amenable number.

3047945 is a deficient number, since it is larger than the sum of its proper divisors (609595).

3047945 is an equidigital number, since it uses as much as digits as its factorization.

3047945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609594.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 3047945 is about 1745.8364757331. The cubic root of 3047945 is about 144.9892183819.

The spelling of 3047945 in words is "three million, forty-seven thousand, nine hundred forty-five".