28454843 has 2 divisors, whose sum is σ = 28454844. Its totient is φ = 28454842.

The previous prime is 28454819. The next prime is 28454857. The reversal of 28454843 is 34845482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28454843 - 2¹⁸ = 28192699 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28454797 and 28454806.

It is not a weakly prime, because it can be changed into another prime (28459843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14227421 + 14227422.

It is an arithmetic number, because the mean of its divisors is an integer number (14227422).

Almost surely, 2^28454843 is an apocalyptic number.

28454843 is a deficient number, since it is larger than the sum of its proper divisors (1).

28454843 is an equidigital number, since it uses as much as digits as its factorization.

28454843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122880, while the sum is 38.

The square root of 28454843 is about 5334.3081088366. The cubic root of 28454843 is about 305.2943248614.

The spelling of 28454843 in words is "twenty-eight million, four hundred fifty-four thousand, eight hundred forty-three".