28645349 has 2 divisors, whose sum is σ = 28645350. Its totient is φ = 28645348.

The previous prime is 28645339. The next prime is 28645367. The reversal of 28645349 is 94354682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26522500 + 2122849 = 5150^2 + 1457^2 .

It is a cyclic number.

It is not a de Polignac number, because 28645349 - 2⁸ = 28645093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28645319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14322674 + 14322675.

It is an arithmetic number, because the mean of its divisors is an integer number (14322675).

Almost surely, 2^28645349 is an apocalyptic number.

It is an amenable number.

28645349 is a deficient number, since it is larger than the sum of its proper divisors (1).

28645349 is an equidigital number, since it uses as much as digits as its factorization.

28645349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 41.

The square root of 28645349 is about 5352.1349945606. The cubic root of 28645349 is about 305.9741281329.

The spelling of 28645349 in words is "twenty-eight million, six hundred forty-five thousand, three hundred forty-nine".