28608049 has 2 divisors, whose sum is σ = 28608050. Its totient is φ = 28608048.

The previous prime is 28608023. The next prime is 28608079. The reversal of 28608049 is 94080682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23590449 + 5017600 = 4857^2 + 2240^2 .

It is a cyclic number.

It is not a de Polignac number, because 28608049 - 2⁷ = 28607921 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28607999 and 28608017.

It is not a weakly prime, because it can be changed into another prime (28608079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14304024 + 14304025.

It is an arithmetic number, because the mean of its divisors is an integer number (14304025).

Almost surely, 2^28608049 is an apocalyptic number.

It is an amenable number.

28608049 is a deficient number, since it is larger than the sum of its proper divisors (1).

28608049 is an equidigital number, since it uses as much as digits as its factorization.

28608049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 28608049 is about 5348.6492687407. The cubic root of 28608049 is about 305.8412643041.

The spelling of 28608049 in words is "twenty-eight million, six hundred eight thousand, forty-nine".