28896577 has 2 divisors, whose sum is σ = 28896578. Its totient is φ = 28896576.

The previous prime is 28896521. The next prime is 28896589. The reversal of 28896577 is 77569882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22363441 + 6533136 = 4729^2 + 2556^2 .

It is a cyclic number.

It is not a de Polignac number, because 28896577 - 2¹¹ = 28894529 is a prime.

It is not a weakly prime, because it can be changed into another prime (28896377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14448288 + 14448289.

It is an arithmetic number, because the mean of its divisors is an integer number (14448289).

Almost surely, 2^28896577 is an apocalyptic number.

It is an amenable number.

28896577 is a deficient number, since it is larger than the sum of its proper divisors (1).

28896577 is an equidigital number, since it uses as much as digits as its factorization.

28896577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 52.

The square root of 28896577 is about 5375.5536459048. The cubic root of 28896577 is about 306.8660196918.

The spelling of 28896577 in words is "twenty-eight million, eight hundred ninety-six thousand, five hundred seventy-seven".