28885741 has 2 divisors, whose sum is σ = 28885742. Its totient is φ = 28885740.

The previous prime is 28885739. The next prime is 28885783. The reversal of 28885741 is 14758882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28836900 + 48841 = 5370^2 + 221^2 .

It is a cyclic number.

It is not a de Polignac number, because 28885741 - 2¹ = 28885739 is a prime.

Together with 28885739, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28885721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14442870 + 14442871.

It is an arithmetic number, because the mean of its divisors is an integer number (14442871).

Almost surely, 2^28885741 is an apocalyptic number.

It is an amenable number.

28885741 is a deficient number, since it is larger than the sum of its proper divisors (1).

28885741 is an equidigital number, since it uses as much as digits as its factorization.

28885741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 143360, while the sum is 43.

The square root of 28885741 is about 5374.5456552159. The cubic root of 28885741 is about 306.8276574096.

The spelling of 28885741 in words is "twenty-eight million, eight hundred eighty-five thousand, seven hundred forty-one".