2847845 has 32 divisors (see below), whose sum is σ = 4596480. Its totient is φ = 1635840.

The previous prime is 2847839. The next prime is 2847863. The reversal of 2847845 is 5487482.

It is not a de Polignac number, because 2847845 - 2¹⁰ = 2846821 is a prime.

It is a super-2 number, since 2×2847845² = 16220442288050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2847799 and 2847808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4721 + ... + 5289.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

2^2847845 is an apocalyptic number.

It is an amenable number.

2847845 is a deficient number, since it is larger than the sum of its proper divisors (1748635).

2847845 is a wasteful number, since it uses less digits than its factorization.

2847845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605.

The product of its digits is 71680, while the sum is 38.

The square root of 2847845 is about 1687.5559249992. Note that the first 3 decimals coincide. The cubic root of 2847845 is about 141.7442496996.

The spelling of 2847845 in words is "two million, eight hundred forty-seven thousand, eight hundred forty-five".