28847843 has 2 divisors, whose sum is σ = 28847844. Its totient is φ = 28847842.

The previous prime is 28847839. The next prime is 28847867. The reversal of 28847843 is 34874882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28847843 - 2² = 28847839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28847794 and 28847803.

It is not a weakly prime, because it can be changed into another prime (28847243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14423921 + 14423922.

It is an arithmetic number, because the mean of its divisors is an integer number (14423922).

Almost surely, 2^28847843 is an apocalyptic number.

28847843 is a deficient number, since it is larger than the sum of its proper divisors (1).

28847843 is an equidigital number, since it uses as much as digits as its factorization.

28847843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 344064, while the sum is 44.

The square root of 28847843 is about 5371.0188046589. The cubic root of 28847843 is about 306.6934130474.

The spelling of 28847843 in words is "twenty-eight million, eight hundred forty-seven thousand, eight hundred forty-three".