28325243 has 2 divisors, whose sum is σ = 28325244. Its totient is φ = 28325242.

The previous prime is 28325203. The next prime is 28325249. The reversal of 28325243 is 34252382.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28325243 is a prime.

It is equal to p_1760465 and since 28325243 and 1760465 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (28325249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14162621 + 14162622.

It is an arithmetic number, because the mean of its divisors is an integer number (14162622).

Almost surely, 2^28325243 is an apocalyptic number.

28325243 is a deficient number, since it is larger than the sum of its proper divisors (1).

28325243 is an equidigital number, since it uses as much as digits as its factorization.

28325243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 29.

The square root of 28325243 is about 5322.1464654780. The cubic root of 28325243 is about 304.8301230840.

The spelling of 28325243 in words is "twenty-eight million, three hundred twenty-five thousand, two hundred forty-three".