28448741 has 2 divisors, whose sum is σ = 28448742. Its totient is φ = 28448740.

The previous prime is 28448699. The next prime is 28448743. The reversal of 28448741 is 14784482.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20160100 + 8288641 = 4490^2 + 2879^2 .

It is a cyclic number.

It is not a de Polignac number, because 28448741 - 2¹⁰ = 28447717 is a prime.

It is a super-3 number, since 3×28448741³ (a number of 23 digits) contains 333 as substring.

Together with 28448743, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28448695 and 28448704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28448743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14224370 + 14224371.

It is an arithmetic number, because the mean of its divisors is an integer number (14224371).

Almost surely, 2^28448741 is an apocalyptic number.

It is an amenable number.

28448741 is a deficient number, since it is larger than the sum of its proper divisors (1).

28448741 is an equidigital number, since it uses as much as digits as its factorization.

28448741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57344, while the sum is 38.

The square root of 28448741 is about 5333.7361202069. The cubic root of 28448741 is about 305.2725003498.

The spelling of 28448741 in words is "twenty-eight million, four hundred forty-eight thousand, seven hundred forty-one".