28241849 has 2 divisors, whose sum is σ = 28241850. Its totient is φ = 28241848.

The previous prime is 28241839. The next prime is 28241887. The reversal of 28241849 is 94814282.

It is an a-pointer prime, because the next prime (28241887) can be obtained adding 28241849 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17305600 + 10936249 = 4160^2 + 3307^2 .

It is a cyclic number.

It is not a de Polignac number, because 28241849 - 2⁸ = 28241593 is a prime.

It is not a weakly prime, because it can be changed into another prime (28241839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14120924 + 14120925.

It is an arithmetic number, because the mean of its divisors is an integer number (14120925).

Almost surely, 2^28241849 is an apocalyptic number.

It is an amenable number.

28241849 is a deficient number, since it is larger than the sum of its proper divisors (1).

28241849 is an equidigital number, since it uses as much as digits as its factorization.

28241849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 38.

The square root of 28241849 is about 5314.3060694695. The cubic root of 28241849 is about 304.5306729671.

The spelling of 28241849 in words is "twenty-eight million, two hundred forty-one thousand, eight hundred forty-nine".