28653089 has 2 divisors, whose sum is σ = 28653090. Its totient is φ = 28653088.

The previous prime is 28653077. The next prime is 28653113. The reversal of 28653089 is 98035682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17497489 + 11155600 = 4183^2 + 3340^2 .

It is a cyclic number.

It is not a de Polignac number, because 28653089 - 2²⁴ = 11875873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28653029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14326544 + 14326545.

It is an arithmetic number, because the mean of its divisors is an integer number (14326545).

Almost surely, 2^28653089 is an apocalyptic number.

It is an amenable number.

28653089 is a deficient number, since it is larger than the sum of its proper divisors (1).

28653089 is an equidigital number, since it uses as much as digits as its factorization.

28653089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 28653089 is about 5352.8580216553. The cubic root of 28653089 is about 306.0016838160.

The spelling of 28653089 in words is "twenty-eight million, six hundred fifty-three thousand, eighty-nine".