2847945 has 16 divisors (see below), whose sum is σ = 4714560. Its totient is φ = 1466304.

The previous prime is 2847937. The next prime is 2847961. The reversal of 2847945 is 5497482.

It is not a de Polignac number, because 2847945 - 2³ = 2847937 is a prime.

It is a super-2 number, since 2×2847945² = 16221581446050, which contains 22 as substring.

2847945 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2839 + ... + 3708.

It is an arithmetic number, because the mean of its divisors is an integer number (294660).

2^2847945 is an apocalyptic number.

It is an amenable number.

2847945 is a deficient number, since it is larger than the sum of its proper divisors (1866615).

2847945 is a wasteful number, since it uses less digits than its factorization.

2847945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6584.

The product of its digits is 80640, while the sum is 39.

The square root of 2847945 is about 1687.5855533868. The cubic root of 2847945 is about 141.7459087622.

The spelling of 2847945 in words is "two million, eight hundred forty-seven thousand, nine hundred forty-five".