28094459 has 2 divisors, whose sum is σ = 28094460. Its totient is φ = 28094458.

The previous prime is 28094447. The next prime is 28094503. The reversal of 28094459 is 95449082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28094459 - 2²⁰ = 27045883 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28094419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14047229 + 14047230.

It is an arithmetic number, because the mean of its divisors is an integer number (14047230).

Almost surely, 2^28094459 is an apocalyptic number.

28094459 is a deficient number, since it is larger than the sum of its proper divisors (1).

28094459 is an equidigital number, since it uses as much as digits as its factorization.

28094459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 28094459 is about 5300.4206436848. The cubic root of 28094459 is about 303.9999819656. Note that the first 4 decimals are identical.

The spelling of 28094459 in words is "twenty-eight million, ninety-four thousand, four hundred fifty-nine".