28002841 has 2 divisors, whose sum is σ = 28002842. Its totient is φ = 28002840.

The previous prime is 28002839. The next prime is 28002883. The reversal of 28002841 is 14820082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27667600 + 335241 = 5260^2 + 579^2 .

It is a cyclic number.

It is not a de Polignac number, because 28002841 - 2¹ = 28002839 is a prime.

Together with 28002839, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28002811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14001420 + 14001421.

It is an arithmetic number, because the mean of its divisors is an integer number (14001421).

Almost surely, 2^28002841 is an apocalyptic number.

It is an amenable number.

28002841 is a deficient number, since it is larger than the sum of its proper divisors (1).

28002841 is an equidigital number, since it uses as much as digits as its factorization.

28002841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 28002841 is about 5291.7710645870. The cubic root of 28002841 is about 303.6691670179.

The spelling of 28002841 in words is "twenty-eight million, two thousand, eight hundred forty-one".