28837241 has 2 divisors, whose sum is σ = 28837242. Its totient is φ = 28837240.

The previous prime is 28837229. The next prime is 28837243. The reversal of 28837241 is 14273882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27081616 + 1755625 = 5204^2 + 1325^2 .

It is a cyclic number.

It is not a de Polignac number, because 28837241 - 2⁶ = 28837177 is a prime.

Together with 28837243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28837243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14418620 + 14418621.

It is an arithmetic number, because the mean of its divisors is an integer number (14418621).

Almost surely, 2^28837241 is an apocalyptic number.

It is an amenable number.

28837241 is a deficient number, since it is larger than the sum of its proper divisors (1).

28837241 is an equidigital number, since it uses as much as digits as its factorization.

28837241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 35.

The square root of 28837241 is about 5370.0317503717. The cubic root of 28837241 is about 306.6558370204.

The spelling of 28837241 in words is "twenty-eight million, eight hundred thirty-seven thousand, two hundred forty-one".