28341109 has 2 divisors, whose sum is σ = 28341110. Its totient is φ = 28341108.

The previous prime is 28341107. The next prime is 28341113. The reversal of 28341109 is 90114382.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18037009 + 10304100 = 4247^2 + 3210^2 .

It is a cyclic number.

It is not a de Polignac number, because 28341109 - 2¹ = 28341107 is a prime.

Together with 28341107, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1761382 and since 28341109 and 1761382 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28341101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14170554 + 14170555.

It is an arithmetic number, because the mean of its divisors is an integer number (14170555).

Almost surely, 2^28341109 is an apocalyptic number.

It is an amenable number.

28341109 is a deficient number, since it is larger than the sum of its proper divisors (1).

28341109 is an equidigital number, since it uses as much as digits as its factorization.

28341109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 28341109 is about 5323.6368208209. The cubic root of 28341109 is about 304.8870279444.

The spelling of 28341109 in words is "twenty-eight million, three hundred forty-one thousand, one hundred nine".