28094657 has 2 divisors, whose sum is σ = 28094658. Its totient is φ = 28094656.

The previous prime is 28094603. The next prime is 28094663. The reversal of 28094657 is 75649082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21381376 + 6713281 = 4624^2 + 2591^2 .

It is a cyclic number.

It is not a de Polignac number, because 28094657 - 2¹⁰ = 28093633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28094687) 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, 14047328 + 14047329.

It is an arithmetic number, because the mean of its divisors is an integer number (14047329).

Almost surely, 2^28094657 is an apocalyptic number.

It is an amenable number.

28094657 is a deficient number, since it is larger than the sum of its proper divisors (1).

28094657 is an equidigital number, since it uses as much as digits as its factorization.

28094657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 28094657 is about 5300.4393214148. The cubic root of 28094657 is about 304.0006961261. Note that the first 3 decimals are identical.

The spelling of 28094657 in words is "twenty-eight million, ninety-four thousand, six hundred fifty-seven".