28923043 has 2 divisors, whose sum is σ = 28923044. Its totient is φ = 28923042.

The previous prime is 28923023. The next prime is 28923061. The reversal of 28923043 is 34032982.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28923043 is a prime.

It is equal to p_1795234 and since 28923043 and 1795234 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 28922996 and 28923014.

It is not a weakly prime, because it can be changed into another prime (28923023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14461521 + 14461522.

It is an arithmetic number, because the mean of its divisors is an integer number (14461522).

Almost surely, 2^28923043 is an apocalyptic number.

28923043 is a deficient number, since it is larger than the sum of its proper divisors (1).

28923043 is an equidigital number, since it uses as much as digits as its factorization.

28923043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 28923043 is about 5378.0147824267. The cubic root of 28923043 is about 306.9596759736.

It can be divided in two parts, 289 and 23043, that added together give a palindrome (23332).

The spelling of 28923043 in words is "twenty-eight million, nine hundred twenty-three thousand, forty-three".