28522943 has 2 divisors, whose sum is σ = 28522944. Its totient is φ = 28522942.

The previous prime is 28522919. The next prime is 28522951. The reversal of 28522943 is 34922582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28522943 - 2²² = 24328639 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28522903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14261471 + 14261472.

It is an arithmetic number, because the mean of its divisors is an integer number (14261472).

Almost surely, 2^28522943 is an apocalyptic number.

28522943 is a deficient number, since it is larger than the sum of its proper divisors (1).

28522943 is an equidigital number, since it uses as much as digits as its factorization.

28522943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 28522943 is about 5340.6875025599. The cubic root of 28522943 is about 305.5376809721.

The spelling of 28522943 in words is "twenty-eight million, five hundred twenty-two thousand, nine hundred forty-three".