28843847 has 2 divisors, whose sum is σ = 28843848. Its totient is φ = 28843846.

The previous prime is 28843783. The next prime is 28843877. The reversal of 28843847 is 74834882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28843847 - 2⁶ = 28843783 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28843798 and 28843807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28843877) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14421923 + 14421924.

It is an arithmetic number, because the mean of its divisors is an integer number (14421924).

Almost surely, 2^28843847 is an apocalyptic number.

28843847 is a deficient number, since it is larger than the sum of its proper divisors (1).

28843847 is an equidigital number, since it uses as much as digits as its factorization.

28843847 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 28843847 is about 5370.6467953125. The cubic root of 28843847 is about 306.6792513477.

The spelling of 28843847 in words is "twenty-eight million, eight hundred forty-three thousand, eight hundred forty-seven".