28518043 has 2 divisors, whose sum is σ = 28518044. Its totient is φ = 28518042.

The previous prime is 28518013. The next prime is 28518071. The reversal of 28518043 is 34081582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28518043 - 2¹³ = 28509851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28517996 and 28518014.

It is not a weakly prime, because it can be changed into another prime (28518013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14259021 + 14259022.

It is an arithmetic number, because the mean of its divisors is an integer number (14259022).

Almost surely, 2^28518043 is an apocalyptic number.

28518043 is a deficient number, since it is larger than the sum of its proper divisors (1).

28518043 is an equidigital number, since it uses as much as digits as its factorization.

28518043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 28518043 is about 5340.2287404193. The cubic root of 28518043 is about 305.5201837083.

The spelling of 28518043 in words is "twenty-eight million, five hundred eighteen thousand, forty-three".