28524000997 has 2 divisors, whose sum is σ = 28524000998. Its totient is φ = 28524000996.

The previous prime is 28524000979. The next prime is 28524001027. The reversal of 28524000997 is 79900042582.

Together with previous prime (28524000979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24661875681 + 3862125316 = 157041^2 + 62146^2 .

It is a cyclic number.

It is not a de Polignac number, because 28524000997 - 2¹¹ = 28523998949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28524000497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14262000498 + 14262000499.

It is an arithmetic number, because the mean of its divisors is an integer number (14262000499).

Almost surely, 2^28524000997 is an apocalyptic number.

It is an amenable number.

28524000997 is a deficient number, since it is larger than the sum of its proper divisors (1).

28524000997 is an equidigital number, since it uses as much as digits as its factorization.

28524000997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 28524000997 in words is "twenty-eight billion, five hundred twenty-four million, nine hundred ninety-seven", and thus it is an aban number.