28414609 has 2 divisors, whose sum is σ = 28414610. Its totient is φ = 28414608.

The previous prime is 28414597. The next prime is 28414627. The reversal of 28414609 is 90641482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27531009 + 883600 = 5247^2 + 940^2 .

It is a cyclic number.

It is not a de Polignac number, because 28414609 - 2¹⁵ = 28381841 is a prime.

It is not a weakly prime, because it can be changed into another prime (28414669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14207304 + 14207305.

It is an arithmetic number, because the mean of its divisors is an integer number (14207305).

Almost surely, 2^28414609 is an apocalyptic number.

It is an amenable number.

28414609 is a deficient number, since it is larger than the sum of its proper divisors (1).

28414609 is an equidigital number, since it uses as much as digits as its factorization.

28414609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 28414609 is about 5330.5355265677. The cubic root of 28414609 is about 305.1503657031.

The spelling of 28414609 in words is "twenty-eight million, four hundred fourteen thousand, six hundred nine".